The Bahamas offer some of the best scuba diving and snorkelling in the world. Every island is rimmed by coral reefs and crystal clear water. Among the impressive array of coral formations you will experience a dazzling display of colourful sea life including moray eels, barracudas, stingrays, turtles, sand tigers, queen triggerfish, parrotfish and angelfish. Warm temperatures make wetsuits unnecessary, making diving even more appealing. There are popular dive sites off Andros Island, which is bordered by the world's third largest reef, the Biminis. Here you can dive with dolphins and islanders claim that it provides a vantage point of the lost city of Atlantis. Elbow Cay, just off Great Abaco, is a great spot from which to view an amazing array of coral. There is also plenty to offer around New Providence Island including Balmoral Island off the north coast, Clifton Wall and Razorback to the southwest. The famous Blue Caves are also another spot very popular with divers, and Dean's Cave in particular is a big drawcard for free divers looking to achieve a personal record for time spent underwater. Free diving competitions are held on occasion at Dean's Cave. For leisure divers, many companies rent equipment and offer courses and trips for both novice and experienced divers.