No medical help
Top hazard
$15
Entrance fee
Boat/seaplane
Only access
1846–1875
Fort Jefferson built
$15/night
Garden Key camping
None
Live cameras
Remoteness & Safety"It's a long way to the hospital"▾
Access & Entry$15 · digital pass required▾
FerryYankee Freedom III
NPS-authorized concessioner
Departs Key West 8:00 AM (check-in 7:30 AM), arrives ~10:30 AM, returns ~5:30–6:00 PM. Day-trip fare starts around $260/person and includes the entrance fee, snorkel gear, breakfast/lunch, and a guided fort tour.
drytortugas.com ↗
SeaplaneKey West Seaplane Adventures
Private operator, not NPS-run
Half-day trips around $527/adult, full-day around $890/adult, plus the $15 park entrance fee. Fastest way to reach the fort — roughly 40 minutes each way.
seaplanesofkeywest.com ↗
Fort JeffersonOne of the largest forts ever built▾
Historycontext▾
ConstructionBuilt 1846–1875, part of the Third System of US coastal fortifications (Maine to California); NPS calls it "one of the largest forts ever built," though it was never finished or fully armed
PurposeProtected the strategic deepwater shipping lanes between the Gulf and Atlantic coasts
Civil WarUnion blockade base and prison, mainly for Union deserters
Dr. Samuel MuddThe fort's most famous prisoner — the physician who set John Wilkes Booth's broken leg after Lincoln's assassination
AbandonedBy the US Army in 1874
CampingGarden Key · FCFS▾
Individual SitesFirst-come, first-served▾
ReservationsNot accepted — guaranteed a spot once you arrive
Fee$15/night, paid via the Recreation.gov app
AmenitiesNo freshwater (bring 2 gal/person/day), no showers, composting toilets closed 10am–3pm
Group Site10–20 people▾
ReservationsRequired via Recreation.gov
Fee$30/night
Book on Recreation.gov ↗
Snorkeling & Reef ProtectionNot in the moat▾
Park Contact Information