This cave is accessible by walking through rice paddy fields about 2.5km from Ban Phon Ton Village. The cave is approached through a lovely forest with a slope leading up to the mouth of the cave about 15m above the valley floor. The entrance is an impressive arch of about 40m wide and 25m high. At the entrance is a rocky, sloping trail with some pools on the right side. The cave's main trail leads down to a junction-take the path on the left past some large boulders to a chamber about 40m wide and 40m high. Wildlife around this cave includes Francois Langur, macaque, serow and kha nyou. Tham Phi Seua is a sacred cave that is believed to be inhabited by spirits.