Administratively Kalisuci carst is located at Jetis village, Pacarejo, Semanu, Gunungkidul, Yogyakarta.
Kali is Javanese for river. Kalisuci is a river attraction of 5 to 10 meters width with clean water. Only this river is under the earth surface, flowing through caves in Gunung Kidul that empty to the southern sea of Java.
This phenomenon is the result of carst region, one of Gunung sewu carst region that spans over 3 regencies, Gunung Kidul, Wonogiri and Pacitan. In Gunung Kidul the carst region consists of 10 areas, covering 13.000 skm with ecocarst character, and endocarst character. Ecocarst constitutes of positive forms ofkarst hills (conical limestone) and doline and negative forms such as poltje and carst lake. And endokarst phenomenons are such as stalactite and stalagmite plus underground river.
In 1993, International Union of Speleology suggested that Gunungsewu carst region including Gua Kalisuci and one of world heritage. And President Yudhoyono launched it as eco-carst region.
Carst Kalisuci located in Semanu offers a cave tubing adventure for its visitors, caving and rafting with low rapid grade. Visitors can ride a floating rubber to explore this cave.
Kalisuci carst is one of 3 cave tubing center in the world, after Mexico and New Zealand.Kalisuci cave tubing constitute of exploring five caves, Cave Suci, Cave Glatikan, Cave Gelung, Cave Buri Omah and Cave Brubug. The underground river depth vary from 5 to 10 meters, and is very fresh and clear.
This cave is also an interesting place for education and learn Speology, Speleogenesis and carst morphology.