National Park Guide

Dry Tortugas National Park

A remote island fort, clear water, coral habitat and open-sea travel make the journey part of the experience.

A few of the stars at night with a view of Fort Jefferson.
Photo: NPS Photo / Brett Seymour · NPS public domain
State / territoryFlorida
Suggested baseKey West / Garden Key
Best seasonDecember–April
Suggested stay2–3 days

Must See

6 specific places

01

Fort Jefferson

Explore the walls and courtyard of the enormous island fort.

02

Garden Key Snorkeling

Shallow water and old pier structures make this the easiest shore snorkeling.

03

Loggerhead Key

A more remote lighthouse island and reef area, generally requiring private boat access.

04

Bush Key

When seasonally open, a walk from Garden Key to beaches and bird habitat.

05

Moat Wall Trail

A circuit outside Fort Jefferson for brickwork, clear water and sunset.

06

South Swim Beach

A sandy swimming and shallow-snorkeling area beside the fort.

Suggested Route

A practical visit order

Base the trip around Key West / Garden Key and use 2–3 days as the starting point. Anchor the first part of the trip around Fort Jefferson, connecting it with Garden Key Snorkeling and Loggerhead Key; use Bush Key, Moat Wall Trail and South Swim Beach as the second block based on weather, energy and current access. Keep only one reservation, long hike or fixed boat departure as the major commitment each day.

Why Go

What to see here

A remote island fort, clear water, coral habitat and open-sea travel make the journey part of the experience.

Build the first visit around the six places above instead of forcing every entrance and side road into one day. Complete the item most affected by weather, reservations or transportation first, then add short trails, overlooks or a sunset window.

Plan the Trip

A practical first-visit structure

01

Choose the base and entrance first

Use Key West / Garden Key as the base and 2–3 days as the starting point. Lodging location should determine each day’s entrance and reduce cross-park driving.

02

Keep one major commitment per day

A long hike, boat trip, cave tour, wildlife morning or popular sunset counts as the day’s anchor. Fill the remaining time with short trails and overlooks.

03

Protect a weather and access buffer

Mountain, desert, island and northern parks are highly condition-dependent. Keep a short backup route and do not make the last shuttle or only open road the single point of failure.

Timing

Season and trip rhythm

Start with December–April and use 2–3 days as a realistic first-trip baseline. In peak season, confirm lodging, entry reservations, shuttles, ferries and tours first. In quieter months, check snow, closures, flood risk, heat and visitor-center hours.

Before You Go

Pre-trip checklist

  • Read the current NPS alerts for roads, trails, fire, weather and temporary closures.
  • Confirm timed entry, parking, shuttles, ferries, cave tours and hiking permits where applicable.
  • Download offline maps and save the entrance, lodging, fuel and last reliable supply stop.
  • Pack for elevation, temperature swings and exposure, including water, sun protection, layers and a headlamp.
  • Schedule sunrise, sunset and wildlife windows first instead of treating them as optional extras.