Jomblang Cave lies in Jetis village, Pacarejo, Semanu, Gunungkidul. It is located about 8 kilometers east of the town of Wonosari and 50 kilometers southeast of Yogyakarta. Jomblang Cave is one of 400 caves in the Gunungkidul Regency of Yogyakarta. The cave is a vertical distance of about 80 meters and connects to Grubug cave, which is in the north part of Jomblang.
To do adventure in Jomblang Cave requires the ability to explore the vertical cave technique using rope as a path to go up and down a vertical field. It has a diameter of 50 meters, and it was visited and explored by the Speleological Club in 1984, a group of cave explorers from Yogyakarta. According to the stories of local people, in 1970 the cave was used for the mass murder of Communist party members. Local people made the incident for fear for a long time, so the Jomblang cave was untouched by humans. In 1990, the local people made a ceremony and prayed in the cave and were no longer scared to explore the cave
Reaching the Jomblang cave is a little difficult and tiring, but it will pay off after going down into the hall about 500 meters toward the Grubug cave. There is a view of awesome silhouettes, some trees growing on the walls, and overgrown shrubs.