Pha Dong Ko in Sakon Nakhon province showcases stunning and breathtaking steep "sandstone cliffs." Safety fences have been installed along the cliff edges for tourists enjoying the panoramic views of the Phu Phan mountain range. The area at the top consists of open plateaus interspersed with lush greenery, reflecting the abundance of natural beauty within Phu Phan National Park, a significant natural tourist attraction.