Koh Chang (Elephant Island) is the largest island in the Gulf of Thailand, at 492 sq km, is the second largest island in Thailand after Phuket. Koh Chang is about 70% undisturbed rainforest, the best preserved in Thailand, which provide the source of rivers and waterfalls. A mountain range with steep cliffs rising to 744 meters shield the island from prevailing winds.   Tourism is very seasonal with several months of rainfall during the year. Weather is cool and pleasant, with plenty o