If you hike along the grotto path, a mighty, steep rock face rises near the cemetery. The Marian grotto in it shows that there has always been a spiritual feeling …
The Venus Grotto is an artificial stalactite cave built into the mountain starting in 1875. The stage design for the "Venus Grotto" is from Act I of Richard Wagner's opera "Tannhäuser" and was created precisely according to his stage directions.