Song Saa Private Island
Unlike many Thai islands, the Cambodian islands in the Gulf of Thailand are undiscovered and unspoiled — and Song Saa intends to keep it that way. Comprising two islands connected by a footbridge over the marine reserve established by the resort, Song Saa is only 30 minutes by boat from Sihanoukville, but it feels as if it's in another world. Just 27 overwater, jungle and water-view villas have been built using sustainable materials, and the setting is so tranquil you might wake to find a rare hornbill perched on your balcony. The spa is nestled in the rainforest, and the restaurant and lounge sit just off the shore, embraced by the sea. While Song Saa employs a full-time marine biologist and five conservation staff members to preserve the area's natural environment, it also offers plenty in the way of classic (and unconventional) resort activities, including sunrise yoga, Buddhist temple ceremonies, kayaking among mangrove forests and snorkeling through coral gardens.
Check out more of the world's best hotels