Koh Samui island of Surat Thani Province.It is Thailand's third largest island.It is rich with natural resources, white sandy beaches, coral reefs , dazzling coral, luscious lagoons, picturesque waterfalls, swaying coconut trees and crystal clear water. Each of Samui's primary beaches is now also nominally considered as a small town, due to the number of hotels, restaurants and nightlife that have sprung up in recent years.
Koh Samui is located in the Gulf of Thailand, about 35 km northeast of Surat Thani town (9°N, 100°E). The island measures some 21 kilometres at its widest point, and 25 km at its longest. It is surrounded by about sixty other islands, which compose the Ang Thong Marine National Park (Mu Ko Ang Thong National Park) and include other tourist destinations (Ko Pha Ngan, Ko Tao and Ko Nang Yuan)
Transportation
Samui international airport
Koh Samui Airport (USM) is a private airport originally built by Bangkok Airways, which is still the main operator and was for a long time the only airline with services to Ko Samui from mainland Thailand. The airport is additionally served by Thai Airways International. Several ferries connect the island with the mainland, including the car ferry from Don Sak to a pier in the west of the island, south of the main town Nathon. Public buses to all parts of the mainland operate from a small bus station located in the south of Nathon. Songthaews (tuk-tuk style buses) circle the ring road, and private taxis are available throughout the island although these are often criticised for failure to use meters and flagrant overcharging.