Situated 60 kilometres off the coast of Chumphon but falling under the jurisdiction of Surat Thani, Ko Tao lies 45 kilometres north of Ko Pha-ngan and is only 20 square kilometres in area but it is known as the best diving site in the Gulf of Thailand. The turquoise water of Ko Tao is crystalline, coconut plantations still cover much of the landscape, and concrete roads are built along only a few beaches. Getting around the island is either by pick-up taxi or by boat. Motorbikes and mountain bikes are also available for rent to explore the island.