Climbing "Rain Dogs" (graded 9+/10-) in the "hintere Arena links nach rechts" area is a significant undertaking. It implies a powerful and technical climb, likely involving intricate sequences, demanding holds, and potentially sustained power endurance. The grade suggests a route that pushes the boundaries of difficulty, requiring a high level of skill, strength, and mental fortitude. The "hintere Arena links nach rechts" location suggests a specific sector of a climbing area; it's crucial to consult guidebooks or online resources to understand the exact location, rock type, style of climbing, and any specific beta (advice or solutions) for "Rain Dogs" before attempting it. Preparing for a route of this grade should involve targeted training, studying the route if possible (through videos or beta), and ensuring adequate rest and nutrition. Success on "Rain Dogs" would represent a noteworthy achievement for any climber.