Climbing 'Sandlerkönig' in the Hintere Arena is a serious undertaking. This route, graded 10-/10 (UIAA), is a test of both physical strength and technical skill. The 'left to right traverse' indicates a sustained and pumpy sequence requiring excellent footwork, precise crimping, and the ability to maintain body tension across the wall. Expect challenging moves, limited rests, and a high commitment level. This route demands respect and thorough preparation. Successfully sending 'Sandlerkönig' is a significant achievement for any climber.