WorldwideSwitzerlandNidwaldenHergiswil (NW)SonnenbergstrasseWorldwideSwitzerlandNidwaldenHergiswil (NW)SonnenbergstrasseCycling Climbs in Sonnenbergstrasse There are 2 cycling climbs in Sonnenbergstrasse.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Classic Hergiswil -Fräki9.27 km10%923 mHC2.Sonnenbergstrasse Climb2.99 km8.7%308 mCat. 3