Khao Yai National Park
Khao Yai National Park is situated in the Sankambeng Mountain Range at the southwestern boundary of the Khorat Plateau. The park is the second largest in Thailand covering an area of 1350 square miles and is home to evergreen forests, grasslands and myriad wildlife.
The park's wildife includes 3,000 species of plants, 320 species of birds like red junglefowl and green peafowl and 67 species of mammals, including Asiatic black bears, Asian elephants, gaur, tigers, gibbons, Indian sambar deer, crab-eating macaque, Indian muntjac, dholes, and wild pigs.
Its waterfalls include the 80 metre Haew Narok Waterfall and there are over 30 miles of hiking trails which range from easy to hard. Other activities in the park include kayaking, rafting and wildlife spotlighting.