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 …
Start is possible at all churches, Heimbach is recommended as there is a direct train connection via line RB34 Direction of rotation counterclockwise. Sturdy shoes are necessary. 15.5 km about 3.5 hours Moderately difficult