Operating Hours & Seasons
Dry Tortugas National Park is open year-round
The following limitations apply to specific areas within the park boundary:
Garden Key is open year round 24 hours a day.
Ft. Jefferson, on Garden Key, is open year-round from sunrise to sunset.
Loggerhead Key is open to day visitors year round from sunrise to sunset. All other facilities on the island, including Loggerhead Lighthouse are closed to the public.
Bush Key is open to visitors October 15th to January 15th from sunrise to sunset.
Hospital Key, and Long Key are closed year round and visitors should remain 100 feet offshore of all closed islands.
Middle and East Keys are open to visitors October 16 to March 31 from sunrise to sunset.
Did You Know?
The Carnegie Institute's Laboratory for Marine Biology was established among the Dry Tortugas in 1905. Based on Loggerhead Key, this research facility laid the foundation for 20th century tropical marine science, with an emphasis on coral reef systems.