Partnach Gorge on Flickr.
The Partnach Gorge (German: Partnachklamm) is a deep gorge that has been incised by a mountain stream, the Partnach, in the Reintal valley near the south German town of Garmisch-Partenkirchen. The gorge is 702 metres (2,303 ft) long and, in places, over 80 metres (260 ft) deep. It was designated a natural monument in 1912.
More information: en.wikipedia.org/wiki/Partnach_Gorge