The old cult rock is situated near the church of St. Thomas. The stone block is divided by the famous cleft. It is said, that you should use the entrance to the east, when you want to practise the through-creeping rite. In the closest place the gap is so narrow that thick persons got stuck and had to be saved by the firebrigade.
Some people believe that the stone has healing power.
By the contact with the holy stone one expected health for body and soul. Today the ritual meaning is lost to a large extent, and it is now widely considered just as a funny custom to squeeze through the gap. Marked access path. The cave can be entered through the artificially extended entrance in which a devotion place with an altar, dedicated to Saint Rochus, is built. A staircase leads to a small platform, from which one gets to the roomy, steeply rising rear part of the cave.