Khlong Prao’s beach is a pretty sweep of sand pinned between hulking mountainous headlands and bisected by two estuaries. At low tide, beachcombers stroll the rippled sand eyeing the critters left naked by the receding water. Sprawling luxury resorts dominate here and the primary pastime is sunbathing by the pool, as high tide gobbles up much of the beach.
With hired transport, you can head in to the interior of the island for some waterfall-spotting. The island’s biggest is Nam Tok Khlong Plu , a three-tiered cascade with a swimmable pool. It is reached via a 600m jungle path and is most stunning just after the rainy season months and in the morning before the crowds arrive.