Fort Jefferson

Fort Jefferson in Dry Tortugas National Park is an unforgettable adventure for families seeking something beyond typical tourist attractions. This massive 19th-century fortress, accessible only by ferry or seaplane, combines fascinating Civil War history with crystal-clear snorkeling waters, pristine beaches, and incredible wildlife viewing opportunities that will captivate kids and parents alike.

• ✓Exploring the massive hexagonal fort with its spiral staircases, prison cells, and cannons overlooking turquoise waters
• ✓Snorkeling in crystal-clear waters around the moat wall where kids can see colorful fish, sea turtles, and coral
• ✓Spotting wildlife including nesting sea birds, nurse sharks, and the resident loggerhead sea turtles
• ✓Earning a Junior Ranger badge by completing activities about the fort's history and ecosystem
• ✓Swimming and playing on the pristine white sand beach in one of America's most remote national parks

1. 1.Book your ferry tickets with Yankee Freedom III weeks in advance, especially during peak season,trips sell out quickly and it's the most affordable way to reach the fort with kids.
2. 2.Bring reef-safe sunscreen, plenty of water, and snacks as there are no food vendors or shade trees on the island. The ferry provides breakfast and lunch, but have extra snacks for hungry kids.
3. 3.Pack snorkel gear if you have it to save on rentals, plus water shoes as the beach has coral debris. The moat wall offers the best beginner snorkeling for kids.
4. 4.Download the National Park Junior Ranger program booklet before you go so kids can complete activities during the ferry ride and while exploring the fort.
5. 5.Visit the historic fort first when you arrive before it gets too hot, then spend the afternoon snorkeling and beach time when kids need to cool off.

Visit between November and April for calmer seas (making the ferry ride more comfortable), cooler temperatures for exploring the fort, and the best underwater visibility for snorkeling. Weekday trips tend to be slightly less crowded than weekends, and arriving on the first ferry gives you maximum exploration time.

The ferry costs approximately $190 for adults and $135 for children (prices vary), includes breakfast and lunch, and departs early morning with about 4.5 hours at the fort. There are no restaurants, shops, or shade structures on the island, so come prepared with everything your family needs for the day.

The park is open year-round, but winter months (November-April) offer the calmest seas and most pleasant temperatures. Summer brings hot weather, afternoon thunderstorms, and rougher seas that may cause ferry cancellations. Hurricane season (June-November) can bring unpredictable weather. Spring break and winter holidays are the busiest times.

You'll need to eat before departing from Key West or after returning. Consider Garbo's Grill (a food truck serving fresh fish tacos) or The Cafe (casual breakfast and lunch spot) near the Historic Seaport where the ferry departs. Pack extra snacks for kids as the ferry breakfast and lunch may not be enough for hungry children after a day of snorkeling and exploring.