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Entrance
$15
+ permits required
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⭐ Highlights
→Fort Jefferson — largest masonry structure in Americas
→Moat Wall snorkeling — tropical fish off the fort
→Garden Key camping — primitive camping under stars
→300+ bird species during migration
⚠ Before you go
!No fresh water on islands — carry everything
!Accessible only by ferry ($100+) or seaplane from Key West
!Camping requires advance reservation — limited spots
When to visit
Dry Tortugas by Season
Winter (Nov–Apr)
Best season. Calm seas. Bird migration.
Spring (Mar–May)
Excellent. Peak bird migration.
Summer (May–Oct)
Hot. Hurricane risk. Rough seas.