Rock climbing is a sport in which participants climb up, across, or down
natural rock formations or indoor climbing walls. The goal is to reach
the summit of a formation or the endpoint of a usually pre-defined route
without falling. Rock climbing is a physically and mentally demanding
sport, one that often tests a climber's strength, endurance, agility and
balance along with mental control. Knowledge of proper climbing
techniques and the use of specialized climbing equipment is crucial for
the safe completion of routes.
📖
Read on Wikipedia