Climbing "Alles Walzer" (grade 7) in "left_side" is a memorable experience. This route likely demands a combination of technical prowess, physical endurance, and mental fortitude. The '7' grade suggests intricate sequences, potentially including delicate footwork, powerful crimps, and sustained pump. Being located on "left_side" might imply specific rock features, such as an overhanging wall, a prominent arete, or a tricky traverse. Successfully sending "Alles Walzer" would be a testament to a climber's dedication and skill.