Thailand's island retreats are legendary. With dazzling turquoise sea, endless white sand beaches and dramatic limstone outcrops, it's hard to imagine a more idyllic place for the perfect beach holiday. If sunbathing and swimming aren't enough to keep you occupied, Thailand's islands offer a myriad of activities, from snorkelling and diving to boat cruises and jungle walks. Then, of course, there are the friendly Thai people, as welcoming and warm as ever...