Finally I managed to make a trip to the Wutachschlucht and Gauchachschlucht (Canyons in the Black Forest). Starting from Schattenmühle I made the 6 hours tour back to my hometown Doeggingen in the Black Forest. It is not that easy but it was worth every second. Please see some pictures of the hike here: Article about the Wutachschlucht hike. If you have any questions regarding this hike, please feel free to use the contact form.
