Challenging in places, with vertical and slightly overhanging sections (categorised as a KS 4 climb). You do need to be quite fit, and certainly sure-footed with a good head for heights. Approach via the Gurnigel water divide, the start is just below the Leitern Pass. Six hours (there and back) from the water divide. You can hire a via ferrata set from the Gurnigel mountain inn.