On the information board you can read: "The Mystery Grotto is a small cave, behind which there is a 12 m wide and 16 m long cave, and in winter we can often admire glorious ice formations.
The strange name of the cave is due to a legend. The blood spatter that was found on the cave wall, however, have no mystical background, but should come from black slaughter.
September 18, 2018
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