My one of the friend been there amazing time and told me his experience which he got from his Thailand's trave. He told me there i spent superb time and enjoyed Sea Kayaking, Snorkeling, Mountain biking, whitewater rafting, photogrpahy, shopping, dinning, zipline and jungle trekking. So, i am thinking that you should do there such as alluring activsites and try to visit its hitorical sights.