The Eastern Thai region oers divers an amazing range of diving destinations. The biggest shipwreck of Thailand now lies 20 metres under the Eastern sea between Koh Mak and Koh Chang. The dive sites are still uncrowded and yet ready for Advanced License divers. Koh Mak had been oering diving experience for more than 15 years with licensed PADI instructor and customer satisfaction from non-diver to professional level.