Koh Bida Nok is considered by many to be the best dive site in the Phi Phi Islands. This small rocky islet south of Phi Phi Leh features dramatic walls plunging to 28 meters, festooned with soft corals and sponges creating a patchwork of purple, yellow, and green. Famous for leopard sharks resting on sandy bottoms, hawksbill turtles, blacktip reef sharks circling at 10 meters, and abundant moray eels and scorpionfish.