East of Yogyakarta you will find an area made for geo-tourists and active tourists. In the vicinity there are many caves and underground rivers. At Imogiri there is an underground river where you can wade for about a kilometre.
At the place Wonosari is the cave Goa Jomblang, hiking here is an adventurous experience. Unfortunately, the cave is not accessible in the rainy season. If you are less mobile, it is better to skip a visit to the cave. The tour through the cave begins with a 60-metre descent on a rope. Then follows a walk of about 400 meters through rugged terrain. The whole adventure takes about three hours. Bring clean clothes and a towel, because it is moist in the cave.
Love to sail? One kilometer from Goa Jomblang is a river where you can float with giant tires. You will overcome height differences and sail through two caves.
Guides and helpers are present at all events.