The cave looks naturally eroded out of sedimentary rock. There are some indications that people have mined at parts of the walls, but not extensively. The soil gets darker as the caves go deeper underground. Air flows inward at the entrance to the caves. There are many crystallized rock formations, with sheets, stalactites and stalagmites, columns, and others. Swirls of colors can be found and there are indications of ores and gems.