Yes, there are toilets on Dry Tortugas National Park, but they are limited. Once you arrive at Garden Key (home to Fort Jefferson), the primary facilities available during the day are the heads onboard the Yankee Freedom ferry, which remains docked for much of the day. If the ferry is not accessible, there are composting toilets located in the campground area. These are eco-friendly, waterless systems designed to handle a low volume of users; because the environment is so fragile, visitors are strictly prohibited from throwing any trash into them. For 2026 campers, these composting toilets are the only option between 3:00 PM and 10:30 AM when the ferry is not at the dock. It is a "pro-tip" to use the ferry’s more modern facilities before it departs Key West to ensure a comfortable 2.5-hour journey to this remote island paradise.