Koh Mook is a small island located in the Andaman Sea, part of the Trang Province in southern Thailand. Known for its stunning beaches and clear waters, it is a popular destination for tourists seeking a peaceful getaway. The island features lush greenery, traditional fishing villages, and opportunities for snorkeling and diving. One of the island's main attractions is the Emerald Cave, a hidden lagoon accessible by swimming through a dark cave. Koh Mook is less commercialized than other Thai islands, making it an ideal spot for those looking to experience natural beauty and local culture without large crowds.