Wikipedia:Ko Samui island of Surat Thani Province (or Koh Samui, Thai: เกาะสมุย, Thai pronunciation: [kɔ̀ʔ samǔj]), or often, simply Samui as it is referred to by locals, is an island off the east coast of the Kra Isthmus in Thailand, close to the mainland Surat Thani town. It is Thailand's third largest island, wit...