Koh samui is an Amphoe is Island in the gulf of Thailand is in the district of Sural Thani province .one in three is the area which is surrounded by mountains,is a major tourist attraction on the southern coast in the gulf of Thailand.and the largest island is the third country in thailand after Phuket and kon chang.koh samui jas many toorist attractions like Chaweng Beach.Hin Ta Hin yai Wat Phra Yai Aptos namuang waterfall na Tian Beach,Taling Ngam Beach,etc.and with creation of island is very simple.