Koh Khai Nok

Just east of Phuket, Khai Nok is a tiny, idyllic island - little more than a forested lump poking out of the sea ringed by white sand and coral. Good snorkelling though the currents can be quite strong at times. Great for a daytrip - there's no place to stay here. Reached within 20 minutes by long-tail boat from Phuket or by joining a boat tour around the area.