Biserna Cave will be open for visits from September 2, 2026.
Entry is only possible after prior arrangement. recording on tel. 054/ 800 765 on weekdays. The working hours for visiting the cave are from Wednesday to Sunday inclusive, as well as on public holidays. Tourists are not accepted on Mondays and Tuesdays.
On weekdays, the entry times are 10 a.m., 11.30 a.m. and 1 p.m., and on holidays and weekends, groups will be accepted from 10 a.m., 11.30 a.m., 1 p.m. and 3 p.m., respectively.
We recommend that visitors wear warm clothing and closed shoes.
The cave has the status of a scientific research site and a habitat for bat colonies, which is why it opens to tourists twice a year - during the spring and autumn months.
The natural phenomenon is part of the 100 National Tourist Sites of Bulgaria and is number 94. Tourists can mark themselves as having visited the cave by scanning the unique QR code or by receiving a stamp.
The cave "Biserna" can be reached on foot. Vehicles are parked next to the villa of the Shumen Municipality, after which tourists are guided by signposts. There is also a walking route from the park "Kyoskovete" along yellow-white markings and directional arrows.