The old tunnels in the Hunsrück make the region an important habitat for various species of bats. Here you'll find one of these tunnels, which can be lit outside of hibernation times so you can take a look inside.
The only gemstone mine in Europe offers a great insight into the mining of various gemstones in Idar-Oberstein. During a guided tour, you not only see the tunnels (and regularly …
Underground cavities are of great importance to our native bats. Of the 20 bat species recorded in Rhineland-Palatinate, 14 regularly use old tunnels, caves, or cellars.
If there wasn't a sign indicating "Odels Uwe" (Ottilie's cave), you could easily overlook the cave, which can be reached somewhat above the path and via a serpentine path. In …