A few steps below the Monopteros lies the 1934 Opelbad. The unique location high above the city attracts bathers from the entire Rhine-Main region to visit the "most beautiful swimming pool in Wiesbaden". The "Forest Adventure Path Neroberg", more than three kilometers long, also introduces nature lovers to the secrets of the forest and its inhabitants. The "Climbing Forest Neroberg", supervised by experienced experts, also offers the opportunity for sporting activity from "tree to tree".