Coral Island    Its reefs are so splendid that this island off Phuket's southern coast is more popularly known as Coral Island. The island, known to locals as Koh Hey, has two fine beaches on its northern and western coasts. Koh Hey is part of a marine preserve, but accommodation, restaurants, various water sports and diving are all available. Boats leave from Chalong Package tours are also available from most tour operators in Phuket.