It's not strictly a dive trip. I've heard mixed reactions regarding Thailand diving. Years ago I spent a month diving in Indonesia, and that was truly some of the most spectacular diving in the world. The Similans look incredible but from what I've heard are inaccessible during July/August. Because of the poorer than usual weather during this time, I was thinking to go to Ko Chang. I haven't read much about diving there, so if anyone has any insights I'd love to hear. Thanks.