Coltului Hydro-Karst System Cluj-Napoca

Coltului Cave and Pepii Cave together create Coltului hydro-karst system, located on the left side of Somes Valley. Access is allowed with the agreement and the rules established by Apuseni National Park, administration Mountains.

Coltului cave is situated at an altitude of 70 m, on the left side of Somes Valley. It was discovered in 1988 and has a large active area with an underground river. The final part of the cave has chimneys which are corresponding to a plateau located at the surface located between Somes Valley and Small Hazel Valley. Crossing the routes of the Corner Cave requires knowledge of techniques and usage of equipment type Alpine Speleological Technique and in the same knowledge of approaching routes of underground rivers.

Pepii Cave is located on the right side of Somes Valley. It has only one sector which is active and which resembles with the active gallery of Corner Cave. So far was failed to achieve the junction with Corner Cave, those several attempts had failed due to the configuration of the place.