Koh Samui The 247-square-kilometre Samui island is Surat
Thani's major tourist attraction. Located 258 nautical miles south of
Bangkok, and some 84 kilometres east of the provincial capital, Koh
Samui measures some 21 kilometres at its widest point, and 25 kilometres
at its longest. A 51-kilometre ring and largely coastal road encircles the
island, which has numerous lovely beaches and bays, and is almost
literally an island of coconuts and forested hills.