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Historic Fort Jefferson overlooking turquoise waters in Florida's Dry Tortugas National Park.

A traveler's guide to Dry Tortugas National Park

Dry Tortugas National Park is a U.S. National Park in Florida. A brick fort on a reef, 70 miles west of Key West.

Fort Jefferson, camping, and snorkel water that looks fake. You get there by ferry or seaplane. The day trip is enough; an overnight on the island is the better story Florida.

When to go

November–April is the window most visitors aim for. Shoulder seasons mean fewer cars at trailheads. Winter can close roads; summer can fill parking lots by 8 a.m. Check NPS alerts the night before you drive in.

How to see it

Start with ferry or seaplane from Key West. Then walk the full circuit of Fort Jefferson. If you have a second day, snorkel the moat walls. Keep one spare hour for garden Key camping if you can get a site.

Park practicalities

An America the Beautiful pass covers entry at most national parks. Timed-entry reservations are used at several busy parks in peak season — book those before lodging. Wildlife has the right of way; 25 yards from most animals, 100 yards from bears and wolves.

If you only remember this

  • The Yankee Freedom ferry sells out. This is a logistics park, not a spontaneous one.
  • Download offline maps. Cell service drops in most parks.
  • Bring layers. Elevation and wind change the day faster than the forecast.
  • Enter the park early. Famous lots and shuttles fill first.