Climbing "Bum putzt" (grade 5+) in "Sektor Bum Bum" is a fun and quirky experience. The name itself hints at the nature of the climb, which often involves some amusing body positions and stemming techniques. While not overly difficult at 5+, the route typically demands good footwork and balance to navigate the often-polished rock. The crux often lies in a sequence of moves where maintaining contact and finding stable placements are key. Expect some interesting holds and perhaps a slightly unconventional style compared to more standard routes. Overall, "Bum putzt" offers a memorable and enjoyable climb in the playful atmosphere of "Sektor Bum Bum."