Hideaway Island on the west coast of Koh Kood at Klong Chao Beach. ? Koh Kood in the Gulf of Thailand from the coast. Trat 82 km? Area of Long Island about 25 kilometers wide and 12 kilometers, is the largest island, is ranked fourth in the country. Dubbed the island often is. "The Maldives of Thailand" because of the beautiful natural landscape and picturesque beaches around photos.