Natural wonders of Gunung Kidul, Central Java

In Indonesia's volcanic, fiery, seismically unstable islands, limestone landscapes are rare. But some exist - tectonic events occasionally push old submarine coral sediments above the water level. With its almost continuous chain of active volcanoes in the middle, **Java **can only boast one true **karst **area: in Gunung Kidul, just southeast of Yogyakarta. The landscape here is equipped with all the **natural wonders **typical for karst: multi-tiered waterfalls, tall craggy hills, **caves **and sinkholes. But, as usual in such regions, the best attractions are underground.

Goa Jomblang

The most popular **karst **attraction in **Gunung Kidul **is Goa Jomblang: a lovely compact **cave **accessible through a vertical shaft. Between 10 am and noon, sunbeams penetrate the shaft and fall onto a massive old stalagmite on the bottom, creating the background for possibly the most **adventurous **selfie an average person can take. There is no way to get in without belay, and independent entry is not allowed, but the ropes, guides and support are included in the program and purchasable on the spot. If you would rather simplify it, the cave can be visited on an organized day trip from Yogyakarta. This will also ensure you actually get in because Jomblang's **fame **occasionally **attracts **more **tourists **than the **cave **can handle in a single day.

Kalisuci cave tubing

If rappelling into a sinkhole is not **adventurous **enough, try sailing through an **underground **river on a truck tire. The starting point is only a couple of km from Goa Jomblang. In many ways, it is more exciting than its **famous **neighbor. The current will pull you through a deep narrow canyon and two caves, then a short climb will take you to the third one. There are plenty of light shafts, beautiful speleothems, and usually no people around. Definitely not to be missed!

Other sights

There are plenty of other sights in the vicinity. Watu Giring is an abandoned rock quarry adapted to serve as a **tourist **spot with limited success. Gunung Sewu Geopark lives up to its name (meaning "A Thousand Mountains") - it is an area filled with scores of hemispheric hillocks almost crawling upon each other. It is best viewed from a drone, the second best option being Gunung Bagus, one of the highest hills in the geopark. Ngingrong Doline is relatively spectacular, but the main draw here is the flying fox zipline - ever tried zipping over a big, dark, ominous sinkhole?

Practicalities

All the sights listed above lie within a 30-minute drive distance from each other or less. The area itself is about 1.5 hours from Yogyakarta by motorbike. A combination of a public bus to Wonosari and hitchhiking between the natural **wonders **of **Gunung Kidul **is also perfectly feasible. In this case, it makes sense to stop overnight in Wonosari - Griya Birowo is a plain but very budget-friendly crashpad. An interesting alternative would be to base yourself on a nearby beach (rocky, with great views but limited swimming opportunities) and mix exploration with recreation. Hotel Kukup Indah on Kukup Beach is probably the most logical option. Goa Jomblang tickets can (and on weekends, should) be booked online, as only a limited number of visitors are allowed daily.