Phu Chong Na Yoi national park covers 687 square kilometers areas in Buntharik, Na Chaluai and Nam Yuen districts in Ubonratchathani province. The park lies on Phanom Dongrak mountain range which contain parts of Laos and Cambodia. It was designated a national park on the 01 June 1987. There are a couple of waterfalls and forest view points there. This area could become a famous place since it is located at the corner of Thailand, Cambodia and Laos.