The Haew Suwat Waterfall was probably the most popular waterfall in Khao Yai National Park. Khao Yai National Park is in the western part of the Sankamphaeng Mountain Range, at the southwestern boundary of the Khorat Plateau. The highest mountain in the area of the park is 1,351 m high Khao Rom.This park lies largely in Nakhon Ratchasima Province (Khorat), but also includes parts of Saraburi, Prachinburi, and Nakhon Nayok Provinces.The park is the third largest in Thailand. It covers an area of 300 square kilometers, including evergreen forests and grasslands.Khao Yai is home to a variety of animals. It is one of the few places in Thailand where wild elephants still survive. They are regularly seen and are a major tourist attraction. Other larger animals include gibbons, pig-tailed macaques, muntjacs and sambar deer.