Jomblang cave located in the village of East Jetis, Pacarejo, Semanu, Gunungkidul. Located 8 kilometres east of the town Wonosari and 50 kilometres southeast of Yogyakarta. Jomblang Cave is one of the 400 caves in the mountains, Gunungkidul. Jomblang cave has a vertical distance of about 80 meters and connected with Grubug cave in north part of Jomblang Cave.
To do adventure in Jomblang Cave, requires the ability to explore a vertical cave technique using a rope as a path to go up and down the field vertically. Jomblang Cave has a diameter of 50 meters and it was first explored in 1984 by Acintyacunyata Speleological Club (ASC), a group of cave explorers from Yogyakarta. According to the stories of local residents, in 1970 the cave being used as mass murder PKI members. The incident was made public fear in a long time, so the cave Jomblang not touched by humans. In 1990, the the local people prayed in Jomblang cave and from then on, no one get scared to explore the cave
To reach the base of Jomblang cave is quite difficult and tiring. But it's hard and it will pay off tired after going into the hall about 500 meters towards Grubug cave. In the area there will be a view of silhouettes awesome. At the bottom of the cave Jomblang, some trees growing on the walls and overgrown shrubs.