The caves are situated in Central Bohemia, 7 km South of Beroun, in the middle of the nature reserve of Czech Karst, not far from castles Křivoklát and Karlštejn. The caves were discovered in 1950 and made accessible for the public in 1959.
The caves are developed in 400 milion years old Devonian limestones, consist of three levels to be found 70 m under the ground-level and over 2 km long. The accessible part is 590 m long and sightseeing tour lasts one hour.
The top level housed in the 15th century a secret workshop of money forgers. The cave can boast of unique opal-bearing decorations, as well as numerous paleonthological exavations, documenting the history of earth Nature of the past 1,5 milion years.
| January, February, March | -- closed -- |
| April, May, June | 8:00 - 16:00 |
| July, August | 8:00 - 17:00 |
| September | 8:00 - 16:00 |
| October | 8:30 - 15:00 |
| November, December | -- closed -- |
| Adults | 120 CZK |
| Pensioners | 80 CZK |
| Childrens under 6 years (must be announced at the cash deks) | FREE |
| Childrens between 6 and 15 years | 60 CZK |
| Studensts up to 26 years only with valid ISIC student card | 60 CZK |
| Taking photos | 30 CZK |
| Taking video | 100 CZK |
| Deposit for a text for foreigners | 50 CZK |