Khao Yai National Park Nakhon Ratchasima, Nakhon Nayok, Prachin Buri and Saraburi
Thailand's first national park, established in 2505, is a World Heritage Site in the year2548 by registering with 5 large forest is Khao Yai National Park. Pang Sida National Park Ta Phraya National Park Thap Lan National Park And Dong-Yai Wildlife Sanctuary. Regarded as a world natural heritage of the two.The forests of Thung Yai Naresuan - Huai Kha. He can be seen as a large variety of wildlife and has beautiful waterfalls such as Namtok Heo Suwat
Waterfall hell. Waterfalls, cliffs, waterfalls, orchids and many more than 20.Route 13 is a favorite of those travelers who appreciate nature, closely throughout the ages.