Dry Tortugas National Park: A remote stargazer's paradise 70 miles from civilization

Dry Tortugas National Park, 70 miles from Key West in the Gulf of Mexico, is reached only by the Yankee Freedom ferry, private boat, or seaplane. Visitors commonly spend day-trips for snorkeling, but camping is limited by the park’s small campground and the ferry’s space constraints. The 16-acre Garden Key is the main landing spot for most arrivals, and the island has no cell service, internet, or fresh water. Key attractions include Fort Jefferson, a Civil War-era masonry complex and the largest in the Americas. A visit highlights the 2.5-hour crossing, the early arrival logistics, and the island’s remote, tide- and stargazing-driven pace.