Climbing "Zwei Herzen aus Stein" (Two Hearts of Stone) on the Arnstein Tower is a memorable experience. The route, graded 6+, offers a demanding but rewarding challenge. The climbing is technical, requiring precise footwork and thoughtful route reading. Expect to encounter some sustained sections of slightly overhanging rock, where good stamina is key. The rock quality is generally excellent, providing plenty of friction and secure holds. Reaching the top provides a fantastic view of the surrounding landscape, making the effort well worth it. This route is a classic example of challenging but enjoyable climbing in the Arnstein area.