Trail Running the HardergratAn exposed journey along a ridge from Interlaken to the Brünig PassThis Run is featured in Run the Alps Switzerland:  30 Must-Do Trail RunsAbout The Book→ 35km     ↑ 3290mΔ 2293M ♦ DifficultΘ Point to PointThe Hardergrat trail run has become a classic, and for good reason. There are few geographic features this defined with a trail so long. Of …