Aid climbing is a technique used in rock climbing where climbers rely on equipment to ascend vertical rock faces. Instead of using only their hands and feet to climb, they place gear such as carabiners, cams, and nuts into the rock to create anchors and footholds. This allows climbers to progress on routes that may be too difficult or impossible to climb using traditional free climbing methods. In aid climbing, climbers often use a system of ropes and gear to support their weight as they move upward. This method is commonly employed on steep or overhanging routes, where natural holds are scarce. Aid climbing is essential for tackling challenging ascents, such as those found in big wall climbing, where climbers may spend several days on the wall.