Koh Chang is the second largest Island of Thailand. Pristine rainforest covers rugged, hilly Koh Chang, Thailand's second largest island. Mangroves and beach forest line the shores, and the whole island supports a huge diversity of wildlife, including macaques, monitor lizards, pythons and barking deer. White-winged terns, nightjars and several species of hornbill are some indigenous birds; many others migrate here