Climbing 'Schwarzer Teufel' on the Grüne Rettenwand is an unforgettable experience. This classic route, graded 6-, offers a fantastic mix of technical climbing, exposed sections, and rewarding moves. The rock quality is generally excellent, providing solid holds and good friction throughout. As you ascend, you're treated to breathtaking views of the surrounding landscape, making the exposure feel all the more exhilarating. It's a climb that truly tests your skill and nerve, but the feeling of accomplishment at the top is immense. A highly recommended adventure for any climber seeking a moderately challenging yet immensely enjoyable multi-pitch route.