Climbing "Sonne, Mond u. Sterne" (Sun, Moon, and Stars) at the Arnstein Hauptwand is a rewarding experience for climbers comfortable with the 6+ grade. This multi-pitch route on the imposing main wall of the Arnstein offers a mix of technical face climbing and satisfying jug hauls. The rock quality is generally good, but expect some polished sections in the lower pitches due to its popularity. Route finding is usually straightforward thanks to well-spaced bolts, but pay attention to the guidebook or topo, especially around cruxes. The exposure increases as you ascend, providing stunning views of the surrounding landscape. Prepare for demanding sequences requiring good footwork and finger strength. Bring a standard rack of quickdraws and a 60m rope for rappelling. Overall, "Sonne, Mond u. Sterne" is a classic Arnstein route, well worth the effort for those seeking a challenging and aesthetically pleasing climb.