The park covers by Dipterocarp forest with Shorea obtusa, Shorea siamensis, Dipterocarpus obtusifollus are dominant species and some beautiful flowers. Beyond, there are some dry evergreen forests near streams.

It is also wildlife habitats for example Siamese hare, barking deer, civet, palm civet. And we can see wild pig and serow, which moved from Laos in summer.

The park has a monsoonal climate with three distinct season; The rain (June-September), the cold (October-February) and the dry season (March-May). The park can be visited all year but be prepared for the chilly nights in the cold season and the occasional heavy thunderstorms in the rain season.

Chek-Moei Cliff

It looks like Pha-Taem and has many ancient pictures even if it is less than Pha-Taem but differ from Pha-Taem.

Pha Taem cliff

It can be best observed from the Mekhong river facing the steepest side. On this side of the cliff historical wall paintings are present. The paintings stretches out over 180m of the cliff wall and contains not less than 300 paintings which is the most you can found on one side of Thiland and the rest in the world.

Phu Pha Kham

Is a sandstone hill with a big rockyard on top of it. On foot of the hill are also some rock painting. Standing on the Mekhong river and the forested hills.

Phu long or coffin mountain

Remains of humans are found in coffin like niches in the rock. The remains are found on top of the mountain and are exposed to rain and sun influence. Most the remains in the graveyard are not complete but this centuries old place is still and impressive place to visit.

Patihan Cave

Is a long tunnel like cave with intermitted rooms. A cave like this is not commonly found in sandstone rock.

Pha Chanadai Cliff

Is a natural pine forest of the two leaf variety, close to the above mentioned cliffs. Form here you have splendid views on Loas and the Mekhong river.

Phu Krabo

Is a sandstone cliff which there are many rock pillars scattered around the area giving it the impression of large rockgarden.

Sao Chaliang Rockpillars

Is a strange natural phenomennom caused by water and sun erosion. The typical form is an erect rock as basic with a flat rockplate loosely across on top, giving it the impression of a giant mushroom. They can be found all over the park.

Soi Sawan Waterfall or necklace

From heaven waterfall is formed by two streams, the Sae Soi and Sae Pai strem. Just before the drop these two streams come together forming a wild arch which looks like a necklace and thus giving this waterfall it's name.