Strap on your oxygen tank and grab your diving mask! The warm waters of the Caribbean are stunningly clear and offer the finest scuba excursions in the world. First time divers and long-time scuba enthusiasts will find all their senses wrapped in a world of striking reefs, mysterious shipwrecks and colorful marine habitats. Nearly 20,000 square miles of coral reef surround the Caribbean islands and host a vibrant ecology of angelfish, sea turtles, sting rays, nurse sharks and every sea creature imaginable.