Six Senses Krabey Island

On a forested hillside and overlooking the Gulf of Thailand, this upscale resort on a private island is accessible only by boat from Ream Beach on the mainland.
Airy 1- and 2-bedroom villas with floor-to-ceiling windows feature Wi-Fi access, flat-screen TVs and plunge pools, plus furnished decks, and forest and/or gulf views; some have separate living rooms. Room service is offered. Kids age 10...