[1] The embankment surrounding the lake is made from tuff and is higher in the west and south than in the north and east.

In the entrance way of the chapel are numerous Dank-Tafeln, plaques with inscriptions such as "[Saint] Mary has helped".

According to one, a castle once stood on this spot in which a benevolent count lived with his servants, his hard-hearted wife and his only child.

One day, the count returned home from the hunt and found only a lake in the place where his castle had stood.

Miraculously a cradle appeared on the surface, in which his child drifted safely to shore.