Sleep Beneath the Sea

Reef Environmental Education Foundation and Florida International University teamed up to offer four divers a night in Aquarius Reef Base, a science lab 60 feet beneath the surface in the Florida Keys National Marine Sanctuary. Fewer than 400 people -- including Sylvia Earle, Fabian Cousteau and Ian Somerhalder - have ever slept in the base. Read how to snag a bunk here.