Although other areas have suffered from tourism and mass development in Thailand, “Koh Chang” has managed to survive while others suffered. It comes as quite a surprise as it is Thailand’s second biggest island and Koh Chang is also the biggest of the 52 islands that comprise the “Koh Chang Marine National Park”. Intact and pure, the marine life and the natural resources of this island make it a pioneer diving destination within South-east Asia. The majority of the diving destinations are located in the southern part of the island.