One for the anglers out there.
There are a few people doing fishing trips around Koh Chang. A couple in large boats which head out to deep water and others in smaller speedboats which head out to the islands off Klong Prao & Kai Bae beaches. ( Where it is possible to catch large Baraccuda amongst other things.)
This video is from a couple of Thai guys who went out fishing with the locals just off Koh Chang.