It was discovered in 1904, during stone extraction. The speleologists found 1200 metres long passages and beautiful stalagmit formations. It was soon opened to the public, equipped with electric lighting in 1927. Since 1944 it is a nature protected area. There has been continous search for new passeges and by 1980 the lenght exceeded 13 kilometres. In 2001 the connection with the neighboroughing Mátyáshegyi cave was discovered and as a result of this today this cave-system is the second longest in Hungary with its 18km length. For visitors guided tours are organised in every hour. The temperature is around 8 Celsius, warm clothing is recommended. The tour lasts about 50 minutes during which 500 metres are covered. There are ladders and steep stairs, it is not recommended for the physically challenged and for children under 5. Opening hours: Tuesday to Sunday from 9am to 4pm.