Travel from Bangkok is possible by three modes of transport: private car, bus or train as follows:
By private car
It is the most convenient option to travel to the park because there is no available transportation service inside the park. The area is accessed by two entrance gates collecting the National Park entrance fee: Visitor Center at the Chao Por Khao Yai Shrine (Pak Chong Entrance) in Pak Chong District, Nakhon Ratchasima and Noen Hom Visitor Center (Noen Hom Entrance) in Meuang District of Prachinburi province.
Thanarat Road winds 50km through Khao Yai National Park from the Chao Por Khao Yai Shrine Entrance to Prachinburi. Tourists may enter one Entrance and leave by the other, or turn back to where they started.
Take the Bangkok-Nakhon Ratchasima coach or Bangkok-Pak Chong private minivan and get off at Pak Chong. From there hire a taxi or take the Pak Chong-Khao Yai bus which terminates at Chao Por Khao Yai Shrine Visitor Center (Entrance gate to the National Park). For further travel to the attractions of Khao Yai National Park, other visitors’ vehicles may be prevailed upon.
Take the North-eastern line (Bangkok-Pak Chong) and get off at Pak Chong station in Nakhon Ratchasima province. From there take a songthaew bus from Pak Chong Market to Khao Yai National Park, getting off at Chao Por Khao Yai Shrine Visitor Center (Entrance gate to the National Park). For further travel to the attractions of Khao Yai National Park, other visitors’ vehicles may be prevailed upon.