Goa Jomblang is a vertical cave of type collapse doline. This cave is formed due to the geological process of land subsidence and its vegetation above it to the base of the earth that occurred thousands of years ago. This collapse forms a sinkhole or a deep well known in the Java language with the term luweng. That’s what makes it unique because in the cave there is a wide cave mouth about 50 meters is often called by the name Luweng Jomblang. Goa Jomblang in Gunung Kidul Regency. Currently Goa Jomblang is a place of ancient plant conservation and developed into a special interest attractions which are managed by residents or local residents. To descend this vertical cave the manager has provided complete equipment according to safety standards caving in vertical cave.
The sunlight that bursts in from Luweng Grubug as high as 90 meters forms a light pole, illuminates the beautiful flowstone and the depths of a pitch black cave. Water dripping from the heights also beautify the landscape. It is not wrong if many people are amazed to come here when witnessing a natural painting known as “the light of heaven”.