What National Park is mostly underwater?

But a national park that's 99 percent underwater, located 70 miles from civilization, and accessible only by seaplane or boat? That's a next-level national park. Enter Dry Tortugas National Park, one of just three designated national parks in Florida — and one of the most remote in the entire U.S. National Park System.



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Located in the southwest corner of the Florida Keys reef system, Dry Tortugas National Park is a remote park that is more than 99% water. Its crystal clear ocean waters abound with incredible marine life.

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The New River Gorge was given National Park Service protection in 1978 as a national river, and was expanded to New River Gorge National Park & Preserve — this country's newest national park — in the plague year of 2020 courtesy of legislation drafted by Senators Joe Manchin and Shelley Moore Capito.

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That state with the most national parks is California, with nine of the nation's 61 national parks within its borders. The total acreage of these nine national parks in California is more than 6.3 million acres.

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Are there sharks in Dry Tortugas? Yes, there are sharks in Dry Tortugas National Park. The most common type of shark seen in the park is the nurse shark. Nurse sharks are not aggressive and are sometimes called the “couch potato” of the shark world.

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Overnight anchoring is allowed in the area of sand and rubble bottom within 1 nautical mile of the Fort Jefferson harbor light and must not block any designated channel. Overnight anchoring is not permitted at any other location in Dry Tortugas National Park.

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MIAMI-DADE ( October 19, 2023 )– Based on compliant water sampling results, all waters surrounding Virginia Key and Key Biscayne – except for Crandon Beach North and South – are no longer subject to the no-swim advisory and signage has been removed.

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