green HellDid the devil play a part in the creation of the primal, wild rock world of this region? The numerous "devilish" names suggest it. And anyone who climbs through the densely overgrown, narrow chasm of the Green Hell near Bollendorf may also think so. Perhaps it is actually an ancient seabed that has turned to stone, to which enormous rock falls and landslides in the ice age and plants that grow even on rock walls and in caves gave its current appearance.The Green Hell stands for many impressive rock formations in the canyon forests around Bollendorf. Just on the hiking route named after her, one bizarre rock formation follows the other, narrow gorges and crevices alternate with rock towers, from which there are fantastic views: Predigtstuhl, Muhmenlay, Lingelslay and Eulenhorst are just a few names that stand for unforgettable impressions.