One of the world's best snorkeling spots is in the Bahamas. The tiny Bimini Islands offer a great variety of snorkeling sights, including coral gardens, plenty of reef fish, and (maybe) even the road to the legendary lost city of Atlantis, a mysterious formation of two parallel lines of rectangular rocks in 15 feet of water. One of the best known sites is the wreck of the 282-foot concrete ship Sapona, driven up on a reef just south of North Bimini during a 1926 hurricane. The hull lies partly submerged in 20 feet of water. Lucky snorkelers may meet up with a pod of spotted dolphins.