Climbing walls are artificial structures designed for rock climbing, typically made of wood or concrete. They feature various holds and grips that simulate natural rock formations, allowing climbers to practice their skills in a controlled environment. Climbing walls can be found in gyms, recreational centers, and outdoor parks, catering to climbers of all skill levels. These walls often have different routes, known as "problems," which vary in difficulty. Some climbing walls are equipped with safety features like harnesses and ropes, while others are designed for bouldering, where climbers ascend shorter walls without ropes, using crash pads for safety.