The Krappen cave is located slightly above Trulben (under the Krappenfelsen) directly on the new premium hiking trail "Trulber Sandhasenweg (11km)". The cave is signposted from the premium path and is particularly entertaining and interesting for children.
The cave is deeper than it appears from the outside. It takes a few minutes for the eyes to get used to the darkness. Then it is much more impressive than with a flashlight.
A somewhat adventurous climb on wild paths leads to the grotto, which is more of a rock overhang. A small stream also rises here and forms a beautiful gorge.