Denis bomb shelter under Petrov hill

Almost a kilometre of mutually perpendicular passages cut in the rock below Petrov.
The shelter would shelter up to three thousand people for four days in the event of a nuclear explosion.
In addition to the classic guided tour, there is also a choice of a dark option, during which most of the route is illuminated only by headlamps.

Opening hours

  • Every Saturday according to the scheduled times in the presale.
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Contact and address

  • TIC BRNO, contributory organisation
  • krytdenis@ticbrno.cz
  • +420 771 524 223
  • Kryt Denis, Nádražní 14, 602 00 Brno-střed
  • (corner of Nádražní and Husova streets)

On the dates of 13, 18 and 19 March, due to the preparation of the event, the comfort of the tours in Water Tower No. 2 will be reduced.

Admission fees

  • Full 180 CZK
  • Discounted 90 CZK

    Students (up to 26 years old), seniors (65 years old and older), disabled persons, disabled persons with disabilities, children up to 15 years old

  • Family 2+2 420 CZK

    2 adults + 2 children under 15

  • - each additional child 60 CZK
  • Children under 6 free
  • BRNOPAS 50 % left

A discount of 10 % s can be applied when purchasing tickets at the box office:

  • Senior/Family Passport
  • with a prepaid or one-day IDS JMK ticket
Buy ticket

Tickets can be purchased online and at the information centres on Radnická and Zámečnická streets.

Civil defence shelter in the hearth of Brno

The twentieth century brought many new developments to war strategy. With the use of "weapons of mass destruction" and the development of the aircraft industry, the protection of the population focused on the construction of air-raid shelters and later fallout shelters. In Brno, one of them was a shelter under Petrov called "Denis". It is located in the rock massif of the Petrov hill. It is a set of mutually perpendicular corridors on a rectangular area of approximately 85 x 60 m with several entrances and a number of emergency exits. The vaulted passages, embedded in the rock with brick lining, are most often about 3 x 3 m and their total length, including the escape tunnels, is about 900 metres. It was self-contained in terms of water, electricity and breathable mixtures, and in the event of an atomic explosion, its 3,000 inhabitants could survive for up to 4 days. Fortunately, the shelter never had to be used and today its long corridors and equipment, preserved in their original state, can be seen on guided tours. For the adventurous, there are also tours in the dark, with only visitors' headlamps to illuminate the space.

Practical information:

  • There are no toilets on site.
  • Persons under 15 years of age must be accompanied by an adult.

Want to experience more adrenaline? Don't miss a visit Bunker 10-Z.