Grosser Daumen (Big Thumb): ascent and descent 1200 m, total hiking time 7 hours
From Bad Hindelang the bus takes us to Hinterstein and to Giebelhaus. From Giebelhaus first we walk on a road, before going steeply up to the gorgeous Engeratsgundsee. (Lake Engeratsgund)
A narrow rocky path takes us in the direction towards Edmund-Probst-Haus until the junction to Grosser Daumen. Climb to the summit.
The track continues from the summit down toward the Kleiner Daumen (small thumb), from the col back down to the lake again and returning to Giebelhaus.
Bus back to Hinterstein and Bad Hindelang.
Water and provisions are not available on this route and must be brought.