Kaeng Krung National Park is a national park in southern Thailand, protecting 338,125 rai ~ 541 km2 of forests in the Phuket mountain range. It was declared a national park on 4 December 1991. The park is in northwest Surat Thani Province, covering area of the districts Tha Chana, Chaiya, Tha Chang, and Vibhavadi. The area encompasses two mountain chains, with the highest elevation being Khao Sung at 849 meters. The northern part drains via the Khlong Sa toward the Lang Suan River, while the south drains via the Khlong Yan to the Phum Duang River. The wildlife in the park includes elephants, bears, gaurs, tapirs, tigers, several monkey species, as well as many bird species.