The Planet Rock Climbing Gym in Ann Arbor, Michigan is amongst the largest in the world offering more than 22,000 sq. ft. climbing area, 50 ft. high walls, lead routes up to 85 ft., motorized climbing wall, and 3 bouldering caves. Our unique terrain caters to complete novices and seasoned pros alike. People aged 5 to 95 are challenged by the quick and easy routes as well as the tough competition grades. Be sure to check out location in Pontiac as well.