Breathing Rock near Rothsnasenhütte

Does a fox family live here who are currently making coffee? Is it the exhaust ducts of the subway to Wilhelmsfeld? Or is it the exit of a secret tunnel system that runs under the Neckar and extends beyond the Dilsberg fortress? The speculation on the Internet is growing wild.
There is a mysterious phenomenon in the Kleingemünde Forest: In winter, "warm" air flows out of a crevice not far from the Rothsnasenhütte. Sometimes it even steams. In summer, the outflowing air is perceived as cool.
Hikers reported to the town hall because they had observed that warm air was flowing out of two crevices in the sandstone above Kleingemünd shortly before the Rothsnasenhütte. It was reported that even the glasses were fogging up. The hikers suspected there might be underground passages in the rock.
(rnz.de/nachrichten/region_artikel,-atmender-fels-bei-kleingemuend-dieses-mysterioese-phaenomen-sracht-fuer-staunen-plus-video-_arid,437842.html)

Burgsteinsberg Sinsheim