Emerald Cave is a cave in the sea, which is located along the west coast of Koh Mook Trang in the area of responsibility of Khiam. This cave has been touted as a tourist attraction Unseen Thailand is renowned as the top of Trang. I do not know anyone who would like to travel to enjoy the beautiful Emerald Cave is a puzzle. They are all required to wear life jackets and swim through the dark cave hall, a distance of more than 80 meters.