Esper Cave

Even before you reach the cave entrance, you can feel in summer the much cooler air that flows from the cave. In the summer months, the cave is walkable and definitely worth a visit. Information boards provide information about the cave and its exploration. The most dangerous places are secured by grates, but the shafts are up to 20 meters deep - therefore it is essential to leash the dog.

From Wikipedia: de.wikipedia.org/wiki/Esperh%C3%Bhle

The cave was first explored in the 18th century by the pastor Johann Friedrich Esper, after whom it is named, until its end.

In the cave, now classified as a Bodendenkmal, one could find a variety of human bones and artifacts from the Late Hallstatt and Early La Tène period, so there is a burial place or place of sacrifice suspected; the finds are in the Natural History Museum Nuremberg.

The cave ruin consists of caves, burglaries and side rooms. The most interesting part of the cave is a 22-meter-deep shaft, which can only be accessed by means of a rope technique. At the bottom of the so-called Klingloch are several pools with continuous stalactites (stalagmites) in the cave wall. There are small side chambers in which one can climb and from which one comes out in the Klingloch, two meters higher.

The cave was used by the residents for a long time to store ice. The front cave parts are relatively easily accessible and are deep. In the cool cave, a layer of cold air formed by the deposit on the ground, which preserved the ice into August.

Very impressive. The actual cave is not accessible. You should definitely visit, if you are in the area!
Description:
The Esper cave is a natural karst cave ruin; In front of the cave is a large sinkhole, which was created by the collapse of the cave roof.
Source and further information:
de.wikipedia.org/wiki/Esperh%C3%B6hle

Great cave, very impressive. Is a hike or at least worth a detour!