Phu Chong–Na Yoi National Park 2.35

Phu Chong–Na Yoi National Park is a protected area at the eastern end of the Dângrêk Mountains, northeastern Thailand. It is in Buntharik, Na Chaluai, and Nam Yuen districts of Ubon Ratchathani Province. Established in 1987, it is an IUCN Category II protected area, measuring. In a mountainous area, the park borders Laos and Cambodia. Natural features include the cliffs at Pha Phueng, and the Bak Teo Yai Waterfall. In 2004, a specimen of a new frog species, Fejervarya triora, was discovered in the park.SightsNamtok Huai Luang or Namtok Bak Teo - Plunging down three steps from an elevation of 30 metres, the waterfall has a small pool with a white beach and turquoise coloured water.Phlan Yao Rock Garden - Rocks in different formations are scattered around the area.Pha Phueng Viewpoint - The viewpoint is next to the rock garden.Namtok Koeng Mae Phong - The waterfall is 9km south of Namtok Huai Luang along the nature trail. It originates from the Lam Dom Noi Stream.Kaeng Sila Thip - Huai Luang Stream runs over a rock terrace and turns fierce in the rapids. In the middle of the stream, its power has created lots of holes on the rock surface in different sizes and depths called "kumphalak".Phlan Kong Kwian - The vast rock terrace with rock shelters at the front is home to wild flowers and plants. In previous days, travellers could seek shelter here. It came to be called "phlan kong kwian", which means "cart terrace".Phu Hin Dang - a cliff-top place to view the forest scenery of Laos and Cambodia. The cliff is brightly coloured. Geologists explain that this is due to dry weather millions of years ago catalyzing mineral residues in the seawater.