For travelers who dream of exploring America’s national parks, one destination stands apart from all the rest.
The National Park of American Samoa is the only U.S. national park that requires visitors to carry a valid passport (or other accepted travel documentation, depending on nationality and immigration status) despite being located in a U.S. territory.
Located more than 2,600 miles (4,180 km) southwest of Hawaii, the park is one of the most remote protected areas managed by the U.S. National Park Service.
Spread across the islands of Tutuila, Ofu, and Taʻū, it offers visitors an unforgettable combination of lush tropical rainforests, volcanic peaks, pristine beaches, vibrant coral reefs, and authentic Polynesian culture.
Unlike many famous U.S. national parks that attract millions of visitors every year, the National Park of American Samoa remains largely untouched by mass tourism.
Its isolation has helped preserve both its extraordinary biodiversity and the traditional Samoan way of life.
Free to Visit
One of the park’s biggest attractions is that there is no entrance fee. Visitors can explore hiking trails, snorkel among coral reefs, observe rare wildlife, and experience local villages without paying an admission charge.
The park protects more than 13,000 acres of land and marine ecosystems, including approximately 4,000 acres of coral reefs, home to sea turtles, tropical fish, and hundreds of marine species.
Why Is a Passport Required?
Although American Samoa is an unincorporated U.S. territory, it maintains its own immigration system rather than operating under the standard U.S. immigration framework.
As a result, travelers must comply with the territory’s specific entry requirements. U.S. citizens generally need a valid passport or a certified U.S. birth certificate, while international visitors must meet American Samoa’s separate immigration rules, which may include visas or entry permits depending on nationality.
A Destination for Adventure Travelers
The National Park of American Samoa appeals to travelers looking for authentic experiences far from crowded tourist destinations.
Popular activities include hiking through dense tropical rainforest, snorkeling and diving in protected coral reefs, birdwatching and wildlife photography, visiting traditional Samoan villages, and experiencing local culture and customs.
The best period to visit is generally May through October, when the weather is drier and sea conditions are calmer.
One of America’s Best-Kept Secrets
With breathtaking volcanic landscapes, rich biodiversity, warm Polynesian hospitality, and virtually no crowds, the National Park of American Samoa remains one of the world’s least-visited national parks – and arguably one of its most rewarding.
For travelers seeking an extraordinary destination that combines adventure, nature, and culture, this hidden Pacific paradise offers a unique opportunity to experience a different side of the United States.
Sources:
- U.S. National Park Service: National Park of American Samoa nps.gov
- U.S. National Park Service: Know Before You Go npca.org
- U.S. Department of the Interior: American Samoa Travel Requirements – doi.gov
- USA.gov – Passport Requirements for U.S. Territories: Passport requirements for U.S. territories
