Fountain National Park and Caverns
Although the prehistoric cavern, 50 feet below the surface, itself is not open to the public, there is an interesting exhibit with information and artifacts of the ancient Amerindian inhabitants of the island. Thousand-year-old carved fertility figures and petroglyphs in the rock surround the pool, which is believed to have been a pilgrimage site; it's the oldest known and longest used such ceremonial cave site in the Caribbean.
