Bloody Bay Marine Park
With its tiny population and scant development, Little Cayman has seen virtually no human-caused damage to its reefs – and marine park status ensures continued protection of one of the world's most spectacular underwater attractions: Bloody Bay, on the north coast. Snorkelers here have the rare opportunity to swim over a coral cliff. Floating in the clear water at a site called Three Fathom Wall, you watch fish milling around the bottom in 18 feet of water. Fin a few yards north, and the bottom drops straight down 1,000 feet. The walls of Bloody Bay are festooned with healthy creatures – tangles of rope sponges, gigantic barrel sponges and webs of soft corals.