The tiny island of Koh Tao ("Turtle Island"), 45 km north of Koh Phangan, is one of the top scuba diving destinations in Thailand, if not the world. In fact, only Cairns, Australia issues more PADI certifications than Koh Tao. While some globetrotting SCUBA snobs may express disappointment, the shallow, crystal clear waters of Koh Tao feature abundant marine life and considerable coral that are certain to please both beginners and experienced divers, particularly as the island itself is so spectacular and the atmosphere on Koh Tao is so relaxing. What’s more, the island, which is the site of important breeding grounds for Hawksbill and Green turtles, is now a center for environmentally friendly diving practices, including the reintroduction of hundreds of juvenile turtles to the island's ecosystem and efforts to preserve and grow coral reefs.Non-divers can appreciate the beauty of Koh Tao, which seems relatively devoid of inhabitants while the majority of visitors are spending their days underwater, by taking a boat trip around the island to visit Koh Tao’s many gorgeous beaches and bays, hiking to the summit of the island, studying yoga, or simply relaxing in a hammock and enjoying the view of nearby Koh Nang Yuan, a spectacular attraction in its own right.