Climbing Wall
Since environmental conditions (ranging from the structural integrity of the climbing surfaces, to equipment wear, to proper use of equipment) can be more controlled in such a setting, indoor climbing is a safer and more friendly introduction to the sport.
There are a few differences in techniques, style and equipment between sport climbing outdoors and indoors. Climbing artificial climbing walls, especially indoors is much safer because of controlled environmental conditions. During indoor climbing, holds are easily visible in contrast with natural wall where finding a good hold or foothold may be a challenge. Climbers on artificial walls are somewhat restricted to the holds prepared by route setter where on natural walls they can use every slope or crack in the surface of the wall. Some typical rock formations can be difficult to emulate on climbing walls.