a01Dim Cave is a natural and karstic cave. It was formed as a result of the melting of limestone rocks along the fracture zone by rain and snow waters rich in carbonic acid (H2Co3). It is thought that tectonics also contributed to the formation and development of the cave. Dim Cave is in the Lower Paleozoic Age, less metamorphic crystallized very hard and very thick bedded gray-dark gray limestone formation, which forms the main mass of Cebel Reis Mountain in the Middle Taurus Mountains. The cave was developed on a fault zone extending in the NW – SE direction; Dim Stream Valley is located 150 m away. The lower levels of the limestones are intercalated with schists, and at the bottom the formation completely turns into schists. Schists are thin-bedded, plate-like fractured, water-insoluble and impermeable rocks. The Taurus Mountains are in the young Alpine Mountain Belt and reached their present heights as a result of severe vertical tectonic movements in the Plio-Pleistocene period in the 2nd half of the 4th geological time. While these young people were digging the Dim Stream bed deeper against these rises, the Dim Cave continued its evolution in the same period and reached its present position. Dim Cave is 360 m long, horizontal, 10-15 m wide and high. The inside of the cave is covered with various and rich dripstone formations. Today, this development continues from place to place. At the end of the cave, there is a small lake with 200 m² of water surface, 17 m deeper than the entrance. The reason for the accumulation of water in this section is that the lake floor is composed of impermeable schists.