Jomblang is a vertical cave with thick ancient forest inside there. A forest with different vegetation from the land above it. The cave was formed by geological process when the soil and all vegetations on it crumbled some thousands years ago.
Currently Jomblang Cave is a place of conservation of ancient plants and developed into a special interest tourist attraction which is managed by residents or local residents.
Sunlight that broke through from Luweng Grubug as high as 90 meters formed a pillar of light, illuminating the beautiful flowstone and the depth of the cave that was pitch black.