Koh Mook, Thailand: Sivalai Beach Resort
For a more affordable, off-the-beaten-path Thai beach destination, skip overdone Phuket and the Phi Phi islands, and head to Koh Mook. This tiny island in the Andaman Sea is only accessible by boat and, as a result, is one of Thailand's best-kept secrets. The Koh Mook Sivalai Beach Resort has the best location on the island, set on a spit of sand on the tip of the island, with ocean views on both sides. Come here to relax on the resort's long stretches of white-sand beach and to go snorkeling in the Emerald Cave, an underwater limestone cave filled with fish. The resort has 31 villas, with bed and breakfast prices starting around $114 per night based on double occupancy.