| Location: It lies on the northern slope of the Gacani Hill (660 m) overviewing the Sakarya River; 4.5 km east of the Mayislar Village to the north of Eskisehir. It is 440 m high from the base of valley. It is accessible through the Saricakaya-Nallihan road. The stabilized road deviating at 4th km of this road passing through Mayislar reaches to the east of the Gacani Hill; and the cave is reached after a half an hour walk on a steep slope. |
| Geography and Environment: Located within the Bilecik limestones overlying the Sariyar Complex (Izmir-Ankara Complex); it is a vertically; semi-vertically developed sinkhole. It has two close entrances; one is like a -5 m shaft. There is a total of 5 steep descents ranging from 2 to 12 m. It is narrow; but has a high roof and inclining galleries. It is a fossil sinkhole which halted its development. |
| Destruction Details: |
