After a step ascent, including some rock-climbing, I arrived at Grutten Hut, near the peak of the day at Gruttenkopf, 1,584m. It is a new and attractive hut.
The rest of the day was easy, level walking.
Hintersteiner See is a pleasant recreational area accessible by road. I had a swim in the lake; it is shallow so the water is not cold.
John