Dry Tortugas
Park №18SoutheastEst. 1992

Dry Tortugas

Florida·64,701 acres·December–April

A 19th-century brick fort marooned on a coral atoll 70 miles from Key West.

Best season
December–April
Trip length
1–2 days
Acres
64,701
Region
Southeast
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Highlights

  • Fort Jefferson
    Largest masonry structure in the Americas — 16 million handmade bricks.
  • Loggerhead Key
    Park's largest island and its tallest lighthouse, day-use only.
  • Snorkel moat wall
    Coral grows directly on the fort's brick walls — beginner-friendly snorkel.

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