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5 Amazing Underground Waterfalls You Can Actually Visit

By Fiona Mokry
Read time: 4 minutes
May 16, 2024
Updated: May 16, 2024

5 Amazing Underground Waterfalls You Can Actually Visit

By Fiona Mokry
Author
Fiona Mokry
Fiona has spent her career exploring the world and working in the travel industry, turning her lifelong passion into a profession. From planning custom trips to sharing stories as a travel writer for publications such as The Discoverer, she’s all about helping others experience the world in a deeper, more meaningful way.

Underground waterfalls may not be a common occurrence, but several secret cascades are found in caves and caverns throughout the United States. If your search for waterfalls only includes those above ground, you could be missing out on some of America’s most magnificent falls. Check out these five underground waterfalls you can visit in the U.S.

Ruby Falls – Tennessee

Winding cave path leading to Ruby Falls in Tennessee
Credit: Roni Ben Ishay/ Shutterstock

About 3 miles outside of Chattanooga, America’s tallest underground waterfall lies hidden inside a limestone cave in Lookout Mountain. And the discovery of Ruby Falls was entirely by accident. In 1928, chemist and cave enthusiast Leo Lambert was on a quest to open the already well-known Lookout Mountain Cave to the public. During a weekslong project of digging through limestone, Lambert and his crew accessed the cave and came upon a secret 145-foot-tall waterfall. 

Lambert named the stunning natural attraction after his high school sweetheart and wife, Ruby. A year later, he opened the waterfall to the public, and Ruby Falls has been a popular Tennessee attraction ever since. To access the falls, visitors take a glass elevator 206 feet down to the limestone cave floor, before embarking on a 1-mile guided tour circling the waterfall while learning the story of its discovery.

Niagara Cave –  Minnesota

Entrance sign for Niagara Cave in Minnesota
Credit: Lost_in_the_Midwest/ Alamy Stock Photo

Niagara Cave in Harmony, Minnesota, has remained a family-owned and operated natural attraction since its opening in 1934. Like Ruby Falls, its discovery was accidental, made in 1924 by a farmer who lost three pigs when they fell into a 75-foot sinkhole. The farmer went to retrieve his pigs by lantern light, only to find a massive cavern. Word of the cavern’s discovery soon spread, and in 1932, three men named Al Cremer, Leo Tekippe, and Joe Flynn set out to explore the cave for themselves. What they found was actually a myriad of caverns, complete with a 62-foot waterfall cascading into a stream at the end of a long, naturally carved walkway. 

Today, visitors access the cave and underground waterfall by descending 275 steps into a 48-degree-Fahrenheit chamber. The cave is covered from floor to ceiling with stunning stalactites and stalagmites and surrounded by several 450 million-year-old fossils. Niagara Cave is also home to a subterranean wedding chapel that has witnessed the union of more than 400 couples

Secret Caverns – New York 

Visitors' center for Secret Caverns in upstate New York, covered in murals
Credit: Franck Fotos/ Alamy Stock Photo

Upstate New York boasts an abundance of nature, from the waterfalls of Ithaca to the hiking trails in the Catskills Mountains and the famous Finger Lakes. This region of New York also claims quite a few caves. One of the most famous (despite its name) is Secret Caverns, which was discovered by local farmers in the 1920s. Secret Caverns is located just a few miles away from another famous attraction, Howe Caverns, in a hamlet aptly named Howes Cave. With a population of under 2,000, this small town is only a speck on the map, but visitors can’t miss the brightly painted signs and kitschy billboards paving the way to the entrance of Secret Caverns. 

For decades, visitors have been descending the 103 steps — dubbed the “petrified elevator” — into the cave’s prehistoric limestone passageways. They are thought to have formed millions of years ago during the last ice age. Stalagmites, stalactites, and ancient fossils lead the way to the main attraction: a waterfall with a 100-foot vertical drop in a large cavern at the end of the cave system. 

Devil’s Millhopper – Florida

People descending stairs to visit Devil's Millhopper underground waterfall in Florida
Credit: Organica/ Alamy Stock Photo

Curious as to how the Devil’s Millhopper sinkhole in northern Florida got its ominous name? While scientists will tell you the sinkhole was formed when the limestone underneath it collapsed in prehistoric times, there are several legends that say otherwise. One story describes early explorers discovering animal bones and fossils on the sinkhole’s floor, leading them to conclude they had jumped down to meet the devil. Another explains the sinkhole was a trap set by the devil to capture the rescuers of a woman he had kidnapped. 

The stories have captivated visitors since the site opened to the public in the late 19th century. To visit, you’ll descend 120 feet to the bottom of the sinkhole, which is covered in naturally occurring rainforest, in contrast to the sandy terrain above. Streams of water trickle down the slopes of the sinkhole, but if you visit during the rainy season or after a storm, the volume of water exponentially increases to what can only be called a waterfall.

Eden Falls – Arkansas

View of Eden Falls inside cave in Arkansas
Credit: TommyBrison/ Shutterstock 

Eden Falls Cave sits at the end of the 2.3-mile out-and-back hike called the Lost Valley Trail, which runs alongside Clark Creek near Ponca, Arkansas. If you visit, be sure to stop and admire the 50-foot-long, naturally carved limestone tunnel and the trail’s namesake, Eden Falls. The final 200 feet of the trek require a crawl through a dark cave, after which you’ll emerge in a larger cavern with an incredible secret waterfall. 

Unlike the other caves on this list, Eden Cave has no purpose-built pathway or artificial lighting, and it’s advised that visitors bring at least three sources of light and be prepared to get wet and muddy. Despite the lack of development, this is a popular hiking area, so it’s best to visit during the week if you want to beat the crowds

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Culture

6 Underrated Vacation Destinations for Seniors

By Julia Hammond
Read time: 5 minutes
May 16, 2024
Updated: May 16, 2024

6 Underrated Vacation Destinations for Seniors

By Julia Hammond
Author
Julia Hammond
Julia is a U.K.-based travel writer whose work has been featured in The Independent, The Telegraph, The New Zealand Herald, and Culture Trip, among others. She’s an enthusiastic advocate for independent travel and a passionate geographer who has had the privilege of traveling to more than 130 countries in search of a story.

Whether you enjoy traipsing around European cities, sunning yourself on a Caribbean beach, or heading off the beaten track in the most remote corners of the planet, age shouldn’t be a barrier to going to places that make you happy. Some destinations, however, have particular appeal for seniors. Here are six unexpected senior vacation destinations that are underrated but well worth visiting.

Uruguay

Sandy beach and waterfront buildings in Montevideo, Uruguay
Credit: Leonid Andronov/ iStock via Getty Images 

While destinations such as Peru and Patagonia feature on many a bucket list, visitors from outside of South America often overlook Uruguay. Yet, this small coastal nation bordering Argentina and Brazil has much to offer senior travelers. 

The charming cobblestone streets of Colonia del Sacramento are a popular day trip from the Argentinian capital of Buenos Aires, while artsy Montevideo — the country’s relaxed capital — boasts a slew of belle époque, art deco, and modernist buildings to admire. Uruguay’s beaches, such as those at jet-set favorite Punta del Este, are among the most beautiful on the continent. Meanwhile, the country’s verdant interior promises family-run wineries and authentic ranch stays. Time your visit to catch the Fiesta de la Patria Gaucha, one of the region’s biggest heritage festivals, which takes place in Tacuarembó each March.  

Bulgaria

Buildings on steep cliffside in Veliko Tarnovo, Bulgaria
Credit: SilvanBachmann/ iStock via Getty Images

Not only is Bulgaria one of the best-value destinations in the EU, but the Balkan country also has a long tradition of hospitality, making it an enticing prospect for senior travelers. Though Europeans are most often drawn to its Black Sea beaches in summer and lively ski resorts in winter, there are many other opportunities to see more of this fascinating country. 

Bulgaria is rich in heritage and culture, as well as natural beauty. Historic towns and cities abound — don’t miss the Tsarevets Castle while in Veliko Tarnovo or the Roman amphitheater in Plovdiv. Also be sure to visit the 10th-century Rila Monastery, which is easy to reach from the capital, Sofia, yet situated in the heart of the Bulgarian countryside surrounded by forested hills. When you’re done, round off your trip by the coast or cross the border into equally underrated Romania or North Macedonia to continue your adventure.

Laos

Street lined with homes leading toward mountains in Laos
Credit: jon chica parada/ iStock via Getty Images 

It takes a little more effort to reach Laos than to reach neighboring countries such as Thailand and Vietnam, but senior travelers will appreciate its charms. Luang Prabang offers a delightful mix of ancient temples alongside French colonial architecture and a bustling night market. Laid-back Vang Vieng, meanwhile, is surrounded by picturesque karst scenery and offers fascinating insights into the Hmong culture. 

The Plain of Jars, located midway between Luang Prabang and Vientiane, the country’s capital, is one of the oldest and most intriguing archaeological sites in Southeast Asia. Elsewhere in Laos, nature is another big draw, with plenty of waterfalls, caves, and forested hills to explore. You’ll also want to take a leisurely cruise along the Mekong River, a major artery in this landlocked country. 

Finland

Northern lights seen over snowy landscape at night in Finland
Credit: Anna Mardo/ Moment via Getty Images 

Finland has lagged behind the other Nordic nations when it comes to the number of U.S. travelers, but not because it’s difficult to reach. Flag carrier Finnair offers direct flights to Helsinki from New York, Los Angeles, Dallas, Chicago, and Seattle. Interest and awareness are growing, with the tourist board noting an uptick in searches for Finnish attractions such as its famous saunas

Restorative nature-based tourism, centered on lakeshore cabins and rural retreats and coupled with the opportunity to see the spectacular northern lights, is also attracting more visitors. Overall, Finland is a great fit for senior travelers looking to relax, unwind, and enjoy their vacation at a slower pace. There’s a plethora of adventure opportunities on offer that are ideal for the over 55s, among them hiking, fishing, and kayaking.

Lesotho

Winding mountain road in Lesotho, seen from above
Credit: steve_is_on_holiday/ iStock via Getty Images 

Mountainous Lesotho styles itself as Africa’s breathtaking “Kingdom in the Sky,” yet tourism is in its infancy. However, thanks to a smattering of comfortable lodges throughout the country, word is starting to spread about this friendly and relatively safe country whose territory is completely encircled by South Africa. 

Travelers of any age, especially those looking for somewhere off the beaten track, will appreciate the country’s unspoiled highlands. Here, shepherds on horseback tend to flocks of sheep beside crystal-clear streams in remote pastures. It’s an easy country to love, with the spectacular scenery of places such as the Sani Pass and Maletsunyane Falls satisfying even the most intrepid travelers. Lesotho is culturally rich, too, and there’s much to learn about the significance of the many different traditional Basotho hats and blankets you’ll see during your stay. 

Belize

View of sunset over ocean between palm trees in Belize
Credit: Cindy Robinson/ Moment via Getty Images 

The tiny nation of Belize is the only English-speaking nation in Central America and boasts the second-largest coral reef in the world. Yet, according to recent data, the only other Central American country which attracts fewer international visitors is Nicaragua. Many of those who do come to Belize limit themselves to offshore islands such as Ambergris Caye and Caye Caulker. 

However, if you’re a senior traveler keen to venture beyond the beach, Belize has a wealth of interesting Maya archaeological sites on the mainland. These include sprawling Caracol, surrounded by rainforest; Lamanai, first settled in 900 BCE; and Altun Ha, where 13 Maya temples and other buildings have so far been excavated. In addition, naturalist-led tours unlock the country’s wildlife-rich interior, where you might see crocodiles, manatees, howler monkeys, hawksbill turtles, and toucans, among other fascinating wildlife.

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Culture

6 of the World’s Busiest Airports With Just a Single Runway

By Bradley O'Neill
Read time: 4 minutes
May 15, 2024
Updated: May 15, 2024

6 of the World’s Busiest Airports With Just a Single Runway

By Bradley O'Neill

When you consider the sheer volume of flights that arrive and depart from major international airports each day, it seems logical that they utilize multiple runways. For example, Chicago’s O’Hare International Airport and Dallas/Fort Worth International Airport (two of the world’s busiest airports) have eight and seven runways, respectively. Nevertheless, airports with just a single landing strip are also capable of handling millions of annual passengers. Check out six of the busiest around the world with a single runway. 

San Diego International Airport (SAN) – California

Aircraft queuing on runway at San Diego International Airport
Credit: joseph s giacalone/ Alamy Stock Photo

Formerly called Lindbergh Field, San Diego International Airport features only one 9,401-foot-long runway, making it the busiest single-runway airport in the U.S. A record-breaking 25.2 million passengers used the airport in 2019, and while the numbers dropped considerably during the pandemic, they rebounded to 24.06 million passengers in 2022. 

The landing approach here is famous for how close jets get to the skyscrapers of downtown San Diego, and because of its urban location, the airport can’t build any additional runways. Around the terminals, though, the Arts Program strives to keep travelers in a zen-like frame of mind through rotating exhibitions and performing arts events. 

Fukuoka Airport (FUK) – Fukuoka, Japan

Aircraft parked at Fukuoka Airport terminal
Credit: Boaz Rottem/ Alamy Stock Photo

Established as a military airfield in 1944, Fukuoka Airport serves as a major gateway to Japan’s Kyushu Island. The airport features three sleek and modern terminals alongside a single, 9,186-foot-long runway. In 2023, 24.6 million passengers transited through the airport via 180,000 aircraft movements, making it the fourth-busiest airport in Japan

Among Fukuoka Airport’s notable passenger features is a collection of observation decks that offer uninterrupted views of planes as they take off and land. One is located on the fourth floor of the International Passenger Terminal Building, while the other, in the Domestic Passenger Terminal Building, is an open-air viewing platform.

Urumqi Diwopu International Airport (URC) – Urumqi, China

Aerial view of terminal at Urumqi Diwopu International Airport in China
Credit: HECTOR RETAMAL/ AFP via Getty Images

At the end of 2023, China reported five single-runway airports that received over 20 million passengers throughout the year. Handling more than 25.08 million passengers and nearly 500 daily takeoffs and landings, Urumqi Diwopu International Airport is the busiest of these airports. 

Urumqi Diwopu serves the desert and mountainous northwestern Xinjiang region, which is at the heart of the Silk Road Economic Belt. In order to cope with Xinjiang’s continual rise in tourism and commercial activities, the airport is undergoing an expansion program. It will include a new terminal and two additional runways to handle the expected increase in traffic to 48 million annual passengers. 

London Stansted International Airport (STN) – United Kingdom

Exterior of terminal building at London Stansted International Airport
Credit: Simon Turner/ Alamy Stock Photo

Created to ease the pressure on London’s Gatwick and Heathrow airports, London Stansted International Airport is the fourth-busiest airport in the United Kingdom. It occupies an airfield built by the U.S. Air Force during World War II, and has a single 10,000-foot runway. Connecting to over 200 destinations across more than 40 countries, Stansted has the largest European network of any U.K. airport, as it’s one of the main hubs for low-cost giant Ryanair. In 2023, 27.96 million passengers used the airport.

London Gatwick International AIrport (LGW) United Kingdom

Aircraft parked at gates at London Gatwick Airport in the United Kingdom
Credit: Peter Titmuss/ Alamy Stock Photo

London’s Gatwick Airport is the second-busiest airport in the U.K. and the busiest single-runway facility in Europe. Opened in 1958, it registered 41 million passenger visits and 253,000 aircraft movements in 2023. Gatwick technically has two runways, but they are too close to each other to permit simultaneous operations. Consequently, the airport falls into the single-runway category. 

The majority of planes take off and land at Gatwick using the 10,879-foot Main Runway, while the Northern Runway (8,415 feet) is typically used as a taxiway. Plans are in place to move the Northern Runway by roughly 39 feet to meet global standards for dual-runway activity. In addition to its air travel options, Gatwick has one of Europe’s most extensive rail links, with direct service to 120 stations. 

Chhatrapati Shivaji Maharaj International Airport (BOM) Mumbai, India

Modern terminal design of Chhatrapati Shivaji Maharaj International Airport in Mumbai, India
Credit: Parvesh Jain/ Alamy Stock Photo

Similar to Gatwick, Mumbai’s Chhatrapati Shivaji Maharaj International Airport has two runways but is classed as a single-strip facility. Here, the two strips (11,302 feet and 9,810 feet long) intersect each other to create an “X” shape. This formation means that the runways can’t be used in parallel. However, with the ability to take off and land in any direction, regardless of wind direction, Mumbai’s airport can still handle significant traffic volumes. 

In 2023, 51.58 million passengers used this airport in India’s most-populous city. Not just a busy transit terminal, the airport is also a striking work of modern architecture and engineering. Terminal 2’s design is inspired by a traditional Indian pavilion. Its 753,474-square-foot roof is supported by 30 columns and is one of the world’s largest roofs without an expansion joint. 

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Tips

You No Longer Have to Show TSA Your Boarding Pass at Some Airports

By Bennett Kleinman
Read time: 3 minutes
May 15, 2024
Updated: May 16, 2024

You No Longer Have to Show TSA Your Boarding Pass at Some Airports

By Bennett Kleinman
Author
Bennett Kleinman
Bennett is a New York City-based staff writer for Daily Passport. He previously contributed to television programs such as the Late Show With David Letterman, as well as digital publications like the Onion. Bennett has traveled to 48 U.S. states and all 30 Major League Baseball stadiums.

Imagine this scenario: You’ve been waiting in a long security line at the airport, only to finally reach the front of the line and realize that you’ve misplaced your boarding pass. Suddenly, panic sets in — maybe you stuffed it into your luggage or dropped it at the ticket counter. In any case, these unpleasant situations can now be avoided at some airports thanks to a handy new program. Here’s why the TSA no longer requires certain travelers to present boarding passes at security checkpoints — and how you can take advantage of this new trick.

What Is Credential Authentication Technology?

Airport passenger standing in queue
Credit: d3sign/ Moment via Getty Images 

Many U.S. airports have implemented a new security system called Credential Authentication Technology (CAT), which allows passengers to breeze past security without showing their boarding pass. All you’ll need to do is show the TSA agent photo identification. Eligible documents include a driver’s license, passport, passport card, Global Entry card, permanent resident card, or other government-issued ID. (Keep in mind that starting on May 7, 2025, your driver’s license will need to be REAL ID compliant for domestic air travel.) Once you’ve presented your ID, the agent places it into the CAT unit, which scans and analyzes it to ensure authenticity. 

Each CAT unit is digitally connected with the airport’s “Secure Flight” database. This online database, which contains all the relevant details for every passenger booked to fly that day, confirms to the agent that you’re good to proceed. If you don’t have a valid ticket, then the database will alert the security officer. CAT units can also be used to determine a passenger’s pre-screening status, such as whether they have TSA PreCheck. This means you can stop worrying about fumbling multiple travel documents — just have your ID ready at the checkpoint, and you’ll be all set.

Which Airports Use CAT?

Travelers passing through security line at airport
Credit: AzmanL/ E+ via Getty Images 

According to the TSA, as of mid-2024, 228 airports feature CAT units on-site, and that number will continue to rise as additional machines are installed. Unfortunately, the TSA no longer posts a publicly available list of these locations on their website, so it may be worth contacting the airport beforehand to check. 

That said, many of the country’s most frequently traveled airports have already started using CAT. This includes Atlanta’s Hartsfield-Jackson Airport, Dallas/Fort Worth Airport, Denver Airport, Chicago O’Hare, LAX, and both JFK and LaGuardia airports in New York City. The list even includes airports as remote as Anchorage, Alaska. (Note, however, that the technology may not yet be available at all checkpoints within an airport, or you may be asked to show your boarding pass if the system isn’t working.)

Why You Should Still Hold Onto That Boarding Pass

Traveler at airport showing boarding pass on smartphone
Credit: hxyume/ E+ via Getty Images 

While Credential Authentication Technology makes passing through security a breeze, you’ll still need to get your boarding pass when checking in with the airline. Once you reach the gate, come prepared with a physical or electronic boarding pass to scan before boarding the plane. While it may seem illogical that boarding passes are required in certain areas of the airport and not others, airlines don’t have access to CAT units like the TSA does, so this check-in process acts as an additional security step to ensure every traveler is in the right seat.

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Tips

These U.S. Airlines Had the Best On-Time Performance in 2023

By Peter Vanden Bos
Read time: 4 minutes
May 14, 2024
Updated: February 13, 2025

These U.S. Airlines Had the Best On-Time Performance in 2023

By Peter Vanden Bos
Author
Peter Vanden Bos
Peter is a Toronto-based journalist, editor, content strategist, and self-professed avgeek with 15 years of experience covering all things travel. Prior to joining Daily Passport, he oversaw newsletter publication for Travelzoo. His favorite destinations to explore include Japan, France, Chile, New Zealand, and his adopted home country of Canada.

Nobody likes getting a late start to their vacation, but flight delays are an inevitable part of air travel. In fact, nearly a quarter of all flights operated by U.S. airlines in 2023 arrived at their destinations late, according to the Bureau of Transportation Statistics. While some factors — such as inclement weather or air traffic control issues — are often unavoidable, other factors such as maintenance, crew availability, and aircraft cleaning are within an airline’s control. When booking a ticket, it’s helpful to know which airlines are the best at managing these issues that frequently contribute to delays. Here are the U.S. airlines with the best on-time performance in 2023.

5. Southwest Airlines – 77.25% On Time

Southwest Airlines Boeing 737 landing on airport runway
Credit: Robert Alexander/ Archive Photos via Getty Images 

One of the “big four” U.S. airlines, Dallas-based low-cost carrier Southwest Airlines transported more than 137 million passengers in 2023. Over three-quarters of them arrived at their destinations on time — good enough for fifth place in U.S. airline on-time rankings. Southwest is famous for its all-Boeing 737 fleet and open seating policy, which helps speed up turnaround times between flights. Passengers are assigned a boarding number based on time of check-in, but those who purchase upgraded boarding can jump the line. 

4. United Airlines – 78.47% On Time

United Airlines jets on airport tarmac
Credit: Jeenah Moon via Getty Images News

With major hubs in Chicago, Newark, Denver, San Francisco, Washington, and Houston, United Airlines served 354 destinations in 2023 — more than any other North American carrier. Nearly 80% of the airline’s passengers arrived in those many cities on schedule in 2023. In an effort to improve operational performance, United recently launched a new boarding system. Travelers seated next to the window board first, followed by those assigned to a middle seat, and finally passengers in aisle seats. United claims that the new system has saved the airline an average of two minutes per flight. It might not sound like a lot to the average traveler, but to an airline, two minutes multiplied by hundreds of flights per day can really add up.

3. American Airlines – 78.88% On Time

Pair of American Airlines jets on airport tarmac
Credit: STEFANI REYNOLDS/ AFP via Getty Images 

American Airlines is the world’s largest airline by number of seats flown, operating an average of nearly 6,800 flights per day with a fleet of more than 900 aircraft. The Dallas-based carrier — which also operates hubs in Chicago, Miami, Philadelphia, Phoenix, and Washington — narrowly edged out rival United Airlines to rank third in the list of on-time rankings for 2023. Based on these statistics, the majority of the airline’s passengers can look forward to an on-time flight, but a word of caution: When it came to overbooking flights, American had the second-highest occurrence of bumping travelers from flights (behind ultra-low-cost carrier Frontier Airlines).

2. Alaska Airlines – 81.06% On Time

Alaska Airlines Boeing 737 taking off from Los Angeles International Airport
Credit: Christina House/ Los Angeles Times via Getty Images 

As its name suggests, Alaska Airlines started flying in the Last Frontier in the 1930s, but the Seattle-based airline has since grown to have a major presence on the West Coast. The airline flew approximately 44 million passengers in 2023, far fewer than the other “big four” airlines on this list, but over 80% of those passengers reached their destinations on time. In late 2023, Alaska announced plans to merge with Hawaiian Airlines — if the merger is approved, the combined airline will serve more than 130 destinations, with key hubs in Seattle and Honolulu.

1. Delta Air Lines – 83.52% On Time

Delta Air Lines Boeing 767 landing in New York City
Credit: CHARLY TRIBALLEAU/ AFP via Getty Images

Delta Air Lines — the world’s largest airline based on revenue — landed in the top spot for 2023 on-time rankings by a healthy margin. Delta flew more than 190 million passengers last year, with many of them transiting through the carrier’s biggest hub at Atlanta Hartsfield-Jackson International Airport, the world’s busiest airport (where Delta operates 800-plus peak daily departures). Even more impressive: The airline also scored top rankings for overall customer satisfaction in the 2024 edition of the annual survey by data analytics firm JD Power.

International Airlines

Qatar Airways Boeing 787 airplane on approach
Credit: NurPhoto via Getty Images 

Headed overseas on an international airline? Aviation analytics firm Cirium took a look at global data to determine the most on-time airlines around the world. In the No. 5 spot was Spain’s flag carrier Iberia (84.38% on-time arrival rate), behind Delta Air Lines, Qatar Airways (85.11% on time), and Brazil’s Azul Airlines (85.51% on time). In the top spot was Colombia-based Avianca Airlines, with an impressive 85.73% of flights reaching their destinations on schedule.

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Culture

5 Replicas of Famous Landmarks You Can Visit Without Leaving the U.S.

By Julia Hammond
Read time: 5 minutes
May 14, 2024
Updated: May 16, 2024

5 Replicas of Famous Landmarks You Can Visit Without Leaving the U.S.

By Julia Hammond
Author
Julia Hammond
Julia is a U.K.-based travel writer whose work has been featured in The Independent, The Telegraph, The New Zealand Herald, and Culture Trip, among others. She’s an enthusiastic advocate for independent travel and a passionate geographer who has had the privilege of traveling to more than 130 countries in search of a story.

In the world of tourism, the old saying “imitation is the sincerest form of flattery” often rings true. Creating a copy of a famous attraction can attract visitors to a city — particularly ones who aren’t keen to book an overseas flight to see the original. So, put away your passport — these are five of the best replicas of famous landmarks you can visit without leaving the U.S.

The Parthenon – Nashville, Tennessee

Nashville Parthenon replica surrounded by grassy field
Credit: f11photo/ Shutterstock 

Dedicated to the Greek goddess Athena, the Parthenon is the most famous monument at the Acropolis of Athens. It took 15 years to build and decorate, which would be an impressive feat in any era but even more so in 447 BCE. Many centuries later, a replica was constructed for the Tennessee Centennial Exposition in 1897. Initially, no one in Nashville expected the Parthenon to stick around after the exposition, as the replica was built with temporary materials. But it proved so popular with residents that, in the 1920s, the structure was rebuilt to become a permanent fixture. 

Today, the building — the world’s only exact-size replica of the Parthenon — houses Nashville’s art museum. Some might even consider the American version an improvement on the original. That’s because, inside, it contains a duplicate of a statue of Athena that went missing from the Greek site around 2,000 years ago. The copy was the work of sculptor Alan LeQuire, who delivered it to the Nashville replica in 1990. 

Leaning Tower of Pisa – Niles, Illinois

Leaning Tower in Niles, Illinois
Credit: Serhii Chrucky/ Alamy Stock Photo

Italy’s Leaning Tower of Pisa is the freestanding bell tower of the Tuscan city’s cathedral. The tower was constructed of heavy marble in the 12th century, but because it was built on soft ground, it began to tilt almost right away. Despite extensive remedial work, the tower still has a pronounced list to this day — which has, in turn, made it a world-famous tourist attraction

The replica that’s found in Niles, Illinois, is a half-scale copy of the original. It owes its existence to local businessman Robert Ilg, who wanted to create a private park for his employees but disliked the idea of an unattractive water tower, which was necessary for the park’s two large pools. His solution was a creative one: Build a replica of one of Italy’s best-known landmarks around it.

The tower, measuring 94 feet tall, took three years to construct and was finished in 1934. Unfortunately, like the original, the tower was beset with problems. Over the years, freeze-thaw weathering took its toll on the concrete structure. But the Niles landmark also underwent a successful renovation and has since been added to the National Register of Historic Places.

Stonehenge – Centreville, Virginia

Foamhenge replica monument in Centreville, Virginia
Credit: Andre Jenny/ Alamy Stock Photo

The sarsens, lintels, and station stones that form the Stonehenge stone circle have graced England’s Salisbury Plain for around 4,500 years. They are an impressive sight to behold, with some of the stones standing more than 20 feet tall. The stones align with the sun during the summer and winter solstices, and, as a consequence, the site has since become closely associated with Druidism. 

In contrast, Foamhenge in Centreville, Virginia, was never intended to have much longevity. Artist Mark Cline of Enchanted Castle Studio initially came up with the concept as an April Fools’ joke, but it proved surprisingly popular. The full-size copy was erected two decades ago in the town of Natural Bridge, but time wasn’t kind to the gray-painted Styrofoam blocks. Showing signs of wear and tear, the replica was dismantled in 2016 and moved a year later to a new location in Centreville at Cox Farms, where it’s been ever since. 

Eiffel Tower – Paris, Texas

Eiffel Tower replica topped with red cowboy hat in Paris, Texas
Credit: Kit Leong/ Shutterstock 

There are not one, but two Eiffel Towers, though they’re separated by a gap of more than 5,000 miles. One graces the skyline of the French capital, and was erected in 1889 on the Champ de Mars for the Exposition Universelle. Gustave Eiffel’s 984-foot-tall design, a latticework pylon made of iron, triumphed over 106 alternatives to become a Parisian icon. 

The other can be found in Paris, Texas, a city that was laid out in 1845 and named for its French counterpart. The 65-foot-tall replica was installed in 1993; since 1999, a giant red Stetson has sat on top. Just like the French original, the Texas tower is illuminated after dark, though here the colors of the Texan flag are often used. However, the tallest true replica of the Eiffel Tower (as opposed to those that are merely similar in appearance, like the Tokyo Tower) is located in Nevada, where it forms part of the Paris Las Vegas Hotel and Casino. 

Venice, Italy – Las Vegas, Nevada

Gondoliers at the Venetian Resort in Las Vegas, Nevada
Credit: Ian Dagnall/ Alamy Stock Photo

The Eiffel Tower isn’t the only European monument you’ll see in Las Vegas — the Venetian Resort features an extensive recreation of the Italian city of Venice. After the wife of late CEO Sheldon Adelson suggested combining the romance of Venice with the glamour of Las Vegas, the one-of-a-kind hotel opened in 1999. Guests will see a mock-up of the Grand Canal together with replica monuments such as the Doge’s Palace and the Campanile of the Basilica San Marco

Some may write off the Venetian for never being able to match the authenticity of the real Venice, but interestingly, the city’s iconic bell tower, St. Mark’s Campanile, is itself a copy of an earlier tower. The first was constructed in the 12th century and rebuilt in the 16th century to the design visitors see today. But even that wasn’t good enough — the tower collapsed in 1902 and had to be replaced for a second time. 

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Culture

6 U.S. Summer Vacation Spots on the Rise

By Jersey Griggs
Read time: 5 minutes
May 14, 2024
Updated: May 14, 2024

6 U.S. Summer Vacation Spots on the Rise

By Jersey Griggs
Author
Jersey Griggs
Jersey is a travel and lifestyle writer whose work has appeared in publications such as Condé Nast Traveler, Business Insider, and Bust. When she’s not exploring her adopted home state of Maine, she’s likely planning her next big trip.

With summer on the horizon, it’s time to put those saved vacation days to good use. Whether you prefer a mountain getaway, a cabin in the forest, or a sandy beach, you don’t need to pack your passport — America has you covered. There are plenty of tried-and-true U.S. vacation spots, such as Orlando and Las Vegas, but data compiled from travel companies such as Airbnb and Google Flights shows that the following destinations are growing in popularity, and for good reason. If you’re in search of a new place to vacay, here are six up-and-coming U.S. destinations that should be on your travel list this summer.

Ouray, Colorado

Aerial view of mountain town of Ouray, Colorado
Credit: Starcevic/ iStock via Getty Images 

With the San Juan Mountains of Southwest Colorado providing a stunning backdrop, the town of Ouray bills itself as the “Outdoor Recreation Capital of Colorado.” Although the mountain town provides access to outdoor activities year-round, Ouray is particularly magical in the summertime. During the season, visitors can enjoy easy access to hiking trails, such as the nearby Box Cañon Falls Park with its 285-foot waterfall, plus other adventures such as horseback riding and mountain biking. 

Home to art galleries, restaurants, boutique shops, and breweries, Ouray’s downtown also has plenty of Rocky Mountain charm to capture your heart. And if you need some downtime, Ouray Hot Springs is home to multiple heated pools and views of the mountains, making it the perfect place to unwind during your summer getaway.

San Juan, Puerto Rico

Narrow street lined with brightly painted homes in San Juan, Puerto Rico
Credit: benedek/ iStock via Getty Images 

New to the list of top summer destinations according to Google Flights, San Juan is quickly rising in popularity for U.S. travelers. With access to sandy beaches, a vibrant culture, and an abundance of sunshine, the waterfront city has all the makings of a relaxed summer vacation. And since Puerto Rico is a U.S. territory, no passport is required — although you’ll probably feel worlds away when you land on its shores.

Before beelining it to the beach, make sure to explore Old San Juan, with its colorful architecture, plentiful restaurants, live music, and fascinating history. (It’s where you’ll find the oldest church in America, built in 1521, among other historic sites.) You can also easily rent a car and explore the island on your own. Home to bioluminescent bays, the only tropical rainforest in the national forest system, and big surfing waves, Puerto Rico promises a memorable time for any type of traveler.

Marquette, Michigan

Shores of Marquette, Michigan
Credit: James Pintar/ iStock via Getty Images 

The usually quiet town of Marquette, Michigan, is experiencing an increased flux of summertime visitors, according to Airbnb. Located on the shores of Lake Superior with direct access to Presque Isle Park, it’s the perfect home base for exploring all that the Upper Peninsula of Michigan has to offer. Visitors won’t want to miss the dramatic sandstone cliffs, picturesque coves, and rocky outcroppings that define Lake Superior’s shoreline.

Water sports such as fishing, kayaking, and paddling are also popular here in the Great Lakes region, as is hiking in the nearby Porcupine Mountains. Foodies will appreciate Marquette’s bustling restaurant scene, while history buffs should seek out the Maritime Museum and Harbor Lighthouse to learn more about Marquette’s maritime past.

Broken Bow, Oklahoma

Winding river in Broken Bow, Oklahoma
Credit: RAphoto77/ Shutterstock 

Surrounded by acres of forest wilderness, Broken Bow is an ideal destination for the outdoorsy set. As one of the trending destinations for vacation rentals this summer, Broken Bow is the gateway to Beavers Bend State Park, home to mountains, deciduous trees, and the Mountain Fork River, which draws hardcore trout anglers and laid-back tube floaters in equal measure.

Besides the plentiful hiking and fishing opportunities, Broken Bow’s high trees are a draw for thrill seekers, thanks to zip-lining tours available at Rugaru Adventures. If an adrenaline-pumping journey through the forest canopy isn’t your thing, the same facility offers state park tours on “swincars,” which are electric all-terrain vehicles with off-roading capabilities.

Burlington, Vermont

Brick road with church tower in Burlington, Vermont
Credit: Sean Pavone/ Shutterstock 

This small city in Vermont’s Green Mountains has New England charm in spades, from the pedestrian-only Church Avenue — filled with shops, restaurants, cafes, and a thriving art scene — to the plethora of summer festivals, including Vermont Jazz Fest, Vermont Brewers Festival, and Burlington Food and Wine Festival.

If you want to get out onto the water, book a sunset sailing cruise or check out Nauti Paddle for a paddleboat tour of nearby Lake Champlain. For ice cream lovers, the nearby town of Waterbury is home to the Ben and Jerry’s factory, which offers tours and all the free ice cream samples you could ever want.

Miramar Beach, Florida

Path leading to sandy shore in Miramar Beach, Florida
Credit: Kristi Blokhin/ Shutterstock 

Miramar Beach ranks as one of the most popular waterfront Airbnb destinations, so expect travelers to soon flock to this stretch of the Florida Panhandle. Located just east of Destin, this small beach town is ideal for families, with calm, turquoise waters, stunning white beaches, and a quieter vibe than some of the more traditional Florida destinations. 

Popular water activities include parasailing, snorkeling near Crab Island, and boat excursions for deep-sea fishing. Depending on your vacation vibe, you can spend the day on the links at the area’s numerous golf clubs or go cruising in search of dolphins. While there are no giant themed amusement parks, there are family-friendly attractions to keep kids happy, including a water park and a marine adventure park.

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Tips

5 Airplane Etiquette Rules You Might Be Breaking

By Marissa Kozma
Read time: 5 minutes
May 14, 2024
Updated: October 28, 2025

5 Airplane Etiquette Rules You Might Be Breaking

By Marissa Kozma
Author
Marissa Kozma
Marissa is a cheap airfare aficionado who loves exploring offbeat destinations with her husband. Based in Los Angeles and Joshua Tree, Marissa has been featured in publications such as San Diego Magazine, Palm Springs Life Magazine, 303 Magazine, and Mountain Living.

Flying can be stressful, but the experience can be a whole lot worse if you have a seatmate or fellow passenger who doesn’t abide by the unwritten rules of air travel etiquette. According to the Federal Aviation Administration, there were 2,031 incidents of unruly passengers in 2023 alone. Want to ensure a smooth flight? Start by making sure you’re not committing these airplane travel etiquette faux pas. 

Don’t Cut to the Front of the Security Line

Travelers in airport security line
Credit: AscentXmedia/ E+ via Getty Image

Unless you are mere minutes from missing your flight, don’t be the person who cuts to the front of the line and aggravates the many other travelers who have been patiently waiting for their turn to go through the metal detectors and have their belongings screened by TSA. If you’re concerned about the clock, politely tell a security officer so they can assist you in getting to the front of the line. Or better yet, enroll in a Trusted Traveler Program like TSA PreCheck before your next flight, which often has shorter lines and doesn’t require passengers to remove their shoes and laptops.

Don’t Ask Someone to Watch Your Stuff

Travelers with baggage at airport
Credit: Pyrosky/ E+ via Getty Images 

Since it is unlawful to leave your bags unsupervised in an airport due to safety concerns, many passengers traveling alone may ask strangers to look after their belongings while they run to grab food or use the restroom. Although it might seem like an easy ask, you also are inconveniencing a fellow passenger who may not like being responsible for your items, or they may also want to grab food or run to the restroom before boarding. Bring your items with you, if you can, or ask airport personnel for assistance if you are having difficulties doing so.

Don’t Ask to Switch Seats

Couple talking to one another across airplane aisle
Credit: izusek/ E+ via Getty Images 

It happens — sometimes you don’t get seated with your partner, friend, or family member. Unless you’re a parent separated from your child, though, try to avoid asking to switch seats unless absolutely necessary. Before booking your flight, you can also consult this helpful dashboard from the Department of Transportation (DOT) to see which airlines guarantee adjacent seats for children 13 or under and an accompanying adult (at no additional cost).

But there are other instances in which you may be tempted to ask to switch seats. For example, you may be looking to give some emotional support to your travel companion with a fear of flying. Or, if it is a particularly long flight (more than four hours), you might not want to be separated from your partner. If you still want to try asking, make sure that your offer is fair (i.e., a window seat for a window seat) or more generous (a seat in the back by the restroom for a seat in the front). And if the other passenger politely declines, respect their decision — after all, they’ve likely chosen their preferred seat for specific reasons, too.

Don’t Be an Inconsiderate Seatmate 

Zoomed-in image of person watching show on smartphone in airplane seat
Credit: AJ_Watt/ iStock via Getty Images 

When you’ve finally made it to your seat and settled in for the flight, beware of the following travel etiquette faux pas that might irritate your fellow passengers: 

Not Using Headphones: Forgot your headphones at home? Many airlines offer reusable earbuds during the flight for a small fee, or you can ask a flight attendant for a pair. Don’t be the person who plays their music out loud or lets their children play shows at high volumes. This is especially rude if people are trying to sleep on an early morning or overnight flight. 

Reclining Your Seat: Seat reclining is always a contested topic, particularly with cramped economy cabins these days. However, airplane seats are (typically) designed to recline, so it’s within the rights of each passenger to do so. However, according to travel experts, politeness and consideration go a long way. Take a look behind you to see if the passenger has a drink or laptop on their tray table before you recline, or you may wish to give them a heads up that you plan to do so. Keep in mind: Some passengers (particularly taller ones) may not appreciate your seat encroaching on their space, so try to limit your recline if possible. 

Personal Grooming: This one should be a given, but personal grooming is a private routine for the home or hotel. Even if the flight is long, doing your makeup or nails on a flight isn’t hygienic, and brushing your hair or flossing your teeth will definitely irk your neighboring passengers. Another way to gross out your fellow passengers is by removing your shoes or socks mid-flight. The plane floor isn’t exactly hygienic, and your feet will likely smell after a long day of travel. 

Not Sharing the Armrests: Airplane armrests are another hotly debated topic. While there aren’t set rules on which passengers — window, middle, aisle — have the right to lean on each armrest, experts suggest being considerate toward the passenger in the dreaded middle seat. Window and aisle passengers aren’t boxed in on both sides, so it’s a good idea to allow the passenger in the middle seat use of both armrests. If you wish to use the armrest, consider striking up a friendly conversation with your seatmate first — they may be more willing to sacrifice some of their space if you make the effort.  

Don’t Be Rude to Airport Personnel 

Gate agent handing passenger ticket at airport
Credit: izusek/ E+ via Getty Images

Lastly, always show respect for the people working to ensure you get to your travel destination safely and comfortably. That’s everyone from the flight attendants who serve you snacks and comply with important safety procedures to the check-in agents who  assist with luggage and the airport employees who answer your questions — and still wear a smile each day. Airport and airline employees are often overworked and underappreciated, so a little kindness goes a long way. 

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Outdoors

6 of America’s Coolest Secret Beaches

By Fiona Mokry
Read time: 5 minutes
May 14, 2024
Updated: May 14, 2024

6 of America’s Coolest Secret Beaches

By Fiona Mokry
Author
Fiona Mokry
Fiona has spent her career exploring the world and working in the travel industry, turning her lifelong passion into a profession. From planning custom trips to sharing stories as a travel writer for publications such as The Discoverer, she’s all about helping others experience the world in a deeper, more meaningful way.

The U.S. claims a whopping 95,471 miles of shoreline. That means there are an extraordinary number of beaches, bays, coves, and sounds for travelers to discover, from Alaska and Hawaii to the West Coast, Great Lakes, and New England. While it’s no secret that coastal states like California and Florida are famous for their beaches, there are many other secluded stretches of sand that fly under the radar. Discover six of America’s coolest secret beaches.

Wildcat Beach – California

High bluffs towering above Wildcat Beach in California
Credit: Michael A Damanski/ iStock via Getty Images 

Visiting Wildcat Beach requires an 11-mile round-trip hike, but the reward is a stunning, sparsely populated coast backed by towering bluffs. Wildcat Beach is part of the Point Reyes National Seashore in Marin Country, just north of San Francisco. Multiple trails provide access to the beach through the Phillip Burton Wilderness, but no matter which one you choose, make sure to plan your trek at low tide — at high tide the beach is almost entirely covered with water. 

Once you reach the beach, the only safe access point is through Wildcat Camp (which is also the only place to spend the night). Be sure to walk to the south end of the beach to check out Alamere Falls, a waterfall that spills out of the cliffs and directly onto the sands. Adhering to the theme of unspoiled nature, there are no bathrooms, cafes, lifeguards, or other amenities at Wildcat Beach, so plan accordingly. 

Hole in the Wall Beach – Washington

View through natural rock arch at Hole in the Wall Beach in Washington state
Credit: Danita Delimont/ Shutterstock 

Located in Olympic National Park, Hole in the Wall Beach is a small part of Washington’s breathtaking 3,000-mile coastline. The name is less of a reference to the beach’s size and more a literal nod to one of its standout physical features: a natural rock formation on the sand, with a large ocean-carved archway in its center that allows visitors to pass through and explore the other side of the beach. 

The “hole” is what put this beach on the map, but still, it’s hardly crowded. That’s because accessing the beach requires a 3.3-mile out-and-back hike from the parking lot of Rialto Beach. If you decide to make the trek,  you’ll notice plenty of other examples of how water, waves, and erosion have shaped this stunning stretch of shoreline. It’s best to visit at low tide to discover more of the beach; checking the tide charts and planning when you’ll start your trek is recommended.

Sandbridge Beach – Virginia

Footprints in sand at Sandbridge Beach in Virginia
Credit: Joe_Potato/ iStock via Getty Images

If you don’t fancy a hike or a hard-to-reach beach, then Sandbridge Beach in Virginia Beach is the beach for you. The small coastal community of Sandbridge, located 15 miles south of the ever-popular Oceanfront District of Virginia Beach, beckons those who want to leave the crowds behind in favor of more secluded sandy shores. A simple restaurant and bathrooms complete the scarce amenities on the beach, which may be a contributing factor to its lack of visitors. Since Sandbridge Beach is connected to Back Bay National Wildlife Refuge to the south, you could easily combine a visit with kayaking, hiking, biking, wildlife observation, and fishing.

Boneyard Beach – Florida

Bare, twisted tree trunks poking out of waters off Boneyard Beach in Florida at sunset
Credit: Wirestock/ iStock via Getty Images 

Don’t let the name deter you — Boneyard Beach is a beautiful stretch of rugged Atlantic shoreline located roughly 40 minutes northeast of Jacksonville. Part of Big Talbot Island State Park, this 3-mile-long beach is named after the copious amount of driftwood that protrudes like skeletons from the sand. 

The “bones” are a result of water movement and waves that create shifts in the sand beneath the island, toppling the trees closest to the water. The felled trees are washed and tumbled by the waves, before ultimately being washed back up onto the shore. The cycle continues as these pieces of driftwood serve as a protective barrier to the remaining trees and land, by subduing the force of wind and water that threaten to erode the coast. The wild and unique landscape of Boneyard Beach draws naturalists to its shore to photograph the unusual sight, but it’s sparsely populated with sunbathers.  

Sleeping Bear Dunes Beach – Michigan

Sand dunes over Sleeping Bear Dunes Beach in Michigan
Credit: Alex Paul Photo/ Shutterstock 

Empire, Michigan, may be a tiny village of fewer than 400 people, but it’s home to the spectacular Sleeping Bear Dunes National Lakeshore and several beautiful beaches. Perhaps the most striking of them is Sleeping Bear Dunes Beach, a serene shoreline that rises to 450 feet in a massive sand dune that towers over Lake Michigan. 

At the bottom of the dune, visitors can enjoy a sandy beach sandwiched between vibrant vegetation and lapping blue waves, and, from the top, panoramic views of the lake and surrounding forests. While this beach may no longer be the best-kept secret, if it’s solitude you’re after, consider visiting in the shoulder season, as the park is open year-round. The beach is reachable by several hiking trails, including Empire Bluff Trail, or Pierce Stocking Scenic Drive. 

Lanikai Beach – Hawaii

Aqua blue waters off Lanikai Beach in Hawaii
Credit: PB57photos/ iStock via Getty Images

With millions of visitors flocking to the island state every year, Hawaii is far from a secret beach destination. Despite tourists packing these small tropical islands to the brim, it’s still possible to find secluded beaches if you stray off the well-beaten path. Lanikai Beach is one of those rare finds. 

Tucked into an exclusive residential neighborhood on Oahu’s southeast shores, Lanikai is a welcome retreat from bustling (and world-famous) Waikiki Beach. The limited access to the sand and the noticeable absence of resorts and hotels built on the beach ensure Lanikai stays peaceful, clean, and relatively uncrowded. You won’t find bathrooms or restaurants here, but you can enjoy uninterrupted views of palms and lush jungle behind you, powdery white sand at your feet, and clear turquoise waters that stretch to the Mokulua Islands and far beyond. 

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Outdoors

Looking to Avoid Crowds? These Are America’s Least-Visited National Parks

By Bradley O'Neill
Read time: 6 minutes
May 13, 2024
Updated: May 13, 2024

Looking to Avoid Crowds? These Are America’s Least-Visited National Parks

By Bradley O'Neill

In 2023, a staggering 325.5 million recreational visits were recorded at the 400 national park sites spread throughout the United States and its territories. While some big hitters, such as Great Smoky Mountains National Park and Grand Canyon National Park, receive millions of tourists annually, other national parks welcome far fewer visitors. So, if you’re looking for magnificent landscapes and majestic wildlife with a little extra solitude, check out America’s 10 least-visited national parks.

10. Great Basin National Park – Nevada (143,265 Visitors)

Deciduous trees and steep mountain faces in Great Basin National Park, Nevada
Credit: DCrane08/ iStock via Getty Images 

The 77,000 acres that make up Nevada’s Great Basin National Park are marked by extreme contrasts. Visitors can wander through ancient caves and bristlecone pine forests or hike alongside alpine lakes or 13,063-foot-tall Wheeler Peak, the second-highest mountain in Nevada. 

Schedule a guided tour of Lehman Caves to see 300 shield formations and mesmerizing speleothem mineral deposits, or check out the Wheeler Peak Scenic Drive Trails, which range from easy walks to high-altitude climbs. This area of the park also has some of the best wildflower viewing. Since 2016, the park has been a designated International Dark Sky Park, making it prime for observing meteor showers and the Milky Way. If you visit for stargazing, be sure to visit the Astronomy Amphitheater, located near Lehman Caves. 

9. Dry Tortugas National Park – Florida (84,285 Visitors)

Aerial view of Fort Jefferson in Dry Tortugas National Park, Florida
Credit: Wirestock/ iStock via Getty Images 

Reachable only by boat or seaplane, Dry Tortugas National Park consists of seven keys, located about 70 miles west of Key West and surrounded by the wildlife-rich waters of the Gulf of Mexico. Snorkelers and scuba divers can spot brightly colored sea creatures around the Windjammer shipwreck and Little Africa Patch. Besides the wildlife found underwater, some 200 bird species pass through the park during the spring migration.

Garden Key, the biggest island, houses historic Fort Jefferson, the largest masonry fort in the Western Hemisphere. It was built in 1846 as a deepwater anchorage and later converted into a military prison; it is now open year-round to visitors.

8. Wrangell-St. Elias National Park and Preserve – Alaska (78,305 Visitors)

River, forest, and snow-capped mountain peaks in Wrangell-St. Elias National Park and Preserve, Alaska
Credit: Cappan/ iStock via Getty Images 

Stretching over 13.2 million acres — from the Gulf of Alaska to 18,008-foot-tall Mount St. Elias — Wrangell-St Elias National Park and Preserve is one of the world’s largest national parks. It also shelters seven of America’s 20 tallest peaks. Much of the park is backcountry, but that doesn’t limit your opportunities to get out into nature. Summertime is ideal for backpacking, day hiking, and boating on glacial rivers, while winters are great for cross-country skiing and snowshoeing. You’ll be sharing the wilderness with varied wildlife such as bald eagles, brown bears, and caribou. A trip to the nearby Kennecot ghost town is also a must to see the remains of a once-thriving mining camp.

7. North Cascades National Park – Washington (40,351 Visitors)

Forested mountain valley in North Cascades National Park, Washington
Credit: dypics/ iStock via Getty Images 

In northern Washington state, North Cascades National Park boasts the highest concentration of glaciers in the lower 48 — there are over 300 glaciers within park boundaries. In addition, more than 400 miles of trails make this a paradise for day hiking and multi-day treks. While the park is accessible year-round, the busiest season is from April to October. Stehekin, located on Lake Chelan, is a great base for expeditions, including short walks through lush forests and a challenging hike up McGregor Mountain. Those who prefer to explore via pedal power will find scenic cycling routes on the North Cascades Highway and Stehekin Valley Road.

6. Katmai National Park and Preserve – Alaska (33,763 Visitors)

Group of brown bears in river in Alaska's Katmai National Park and Preserve
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Set on a peninsula south of Anchorage, Katmai National Park and Preserve ranks among the premier bear-spotting destinations in the United States. Around 2,200 brown bears inhabit the park, with many gathering at Brooks Camp (the most popular viewing spot) in the summer to feast on salmon. On a good day, a dominant male brown bear will eat up to 30 fish. 

Brooks Camp is also the starting point for the park’s most popular adventures. They include hiking up Dumpling Mountain, kayaking the 80-mile Savonoski Loop, and backpacking in the Valley of Ten Thousand Smokes, the latter of which provides intimate encounters with ash-covered volcano slopes and glaciers.

5. Isle Royale National Park – Michigan (28,965 Visitors)

Aerial view of Isle Royale National Park, Michigan
Credit: Matt Champlin/ Moment via Getty Images

Isle Royale National Park is made up of a cluster of islands located in Lake Superior, close to the Canadian border. Cars are banned from the islands, so the only way in is by boat or seaplane from lake towns in Michigan and Minnesota. It’s also the only national park to fully close in the winter, which helps to explain its low annual visitation numbers.

Once here, visitors can explore a serene island wilderness via 165 miles of marked trails and  30 campgrounds for overnight stays. Favorite spots for uninterrupted island views include Grace Creek Overlook and Minong Ridge Overlook. Don’t miss the Greenstone Ridge Trail, a 40-mile backpacking route linking backcountry lakes and campgrounds on the main island.

4. Kobuk Valley National Park – Alaska (17,616 Visitors)

Sandy landscape in Kobuk Valley National Park, Alaska
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Life in Kobuk Valley National Park, located just north of the Arctic Circle, is centered around the Kobuk River, an ancient corridor for caribou migration. Humans have been coming to a riverside site called Onion Portage for over 9,000 years to hunt the caribou. Despite a lack of facilities, the park offers an abundance of outdoor pursuits — including boating on the Kobuk River, climbing the Baird Mountains, and hiking across the towering Kobuk River Sand Dunes. In addition to the emblematic caribou, the park welcomes more than 100 bird species from all seven continents. 

3. Lake Clark National Park and Preserve – Alaska (16,728 Visitors)

Brown bear next to river in Lake Clark National Park and Preserve, Alaska
Credit: Dana Foreman/ iStock via Getty Images 

Occupying 4 million acres, Lake Clark National Park and Preserve is a land of active volcanoes, mystical mountains, remote lakes, and meandering coastlines. The Dena’ina Athabascan peoples have called this area home for thousands of years. 

Delve into their history at the Quk’ Taz’un (“The Sun Is Rising”) learning camp and walk in their ancestral footsteps on the Telaquana Route — a five-to-seven-day trip from Telaquana Lake to Kijik Village on Lake Clark that requires good map-reading and wayfinding skills. The park also features three designated Wild Rivers and two National Natural Landmark volcanoes, both of which rise over 10,000 feet. 

2. National Park of American Samoa – American Samoa (12,135 Visitors)

Bay surrounded by lush rainforest, seen from above, in National Park of American Samoa
Credit: BlueBarronPhoto/ iStock via Getty Images 

The only U.S. national park located south of the equator, the National Park of American Samoa occupies three islands — Tutuila, Ta’ū, and Ofu — in the South Pacific. This national park is actually closer to New Zealand than to the mainland United States. For those who do venture all the way here, the island chain beckons with enchanting coastlines, pristine coral reefs, rainforests, and volcanoes. 

You can also gain fascinating insights into the traditions of Polynesia’s oldest culture. Outdoor activities here include snorkeling at postcard-perfect Ofu Beach and hiking through a cloud forest to the summit of Lata Mountain. The Homestay Program is an excellent way to experience the life of the island villagers.

1. Gates of the Arctic National Park and Preserve – Alaska (11,045 Visitors)

River and mountains in Gates of the Arctic National Park and Preserve, Alaska
Credit: Shelley Wales/ iStock via Getty Images 

The only way to reach Gates of the Arctic National Park and Preserve is by bush plane or an arduous hike, so it’s no surprise that it’s the least-visited national park in the country. There are no roads, no trails, no designated campsites, and no cellphone service in this 8.4 million-acre wilderness north of the Arctic Circle, so meticulous planning is key.

The reward? Six designated Wild Rivers to float down, multiday hikes amid the dramatic Arrigetch Peaks, and unmeasurable tranquility on the shores of Walker Lake. Those not quite up for the trekking challenges can also glimpse this natural wonder from the comfort of a flightseeing tour.