Khao Chang, is a 45 m high hill in Phang Nga Province, Thailand. It is in Phang Nga town behind city hall. Located within the compound of Wat Phra Paht Phra Chim temple, at the base of a mountain, is Phung Chang Cave, also known as 'Elephant Belly Cave.' This cave is notable for its stalactites and stalagmites formations. Certain areas of the cave are …Khao Chang, is a 45 m high hill in Phang Nga Province, Thailand. It is in Phang Nga town behind city hall. Located within the compound of Wat Phra Paht Phra Chim temple, at the base of a mountain, is Phung Chang Cave, also known as 'Elephant Belly Cave.' This cave is notable for its stalactites and stalagmites formations. Certain areas of the cave are permanently flooded, but they remain accessible to visitors via boat.