The Devil's Cave is a dripstone cave located in the town of Pottenstein, Bavaria, Germany. The cave is 1,500 metres, the largest in Franconian Switzerland.
Wikipedia https://en.wikipedia.org/wiki/Devil's_Cave_(Pottenstein)
Official Website http://www.teufelshoehle.de/
Email info@teufelshoehle.de
Phone +49 09243 208
Coordinates 49°45'15.647" N 11°25'12.234" E