Mountaineering, often called alpinism when done in the Alps,[2] is the set of activities that involves ascending mountains. Mountaineering-related activities INCLUDE traditional outdoor climbing, skiing, and traversing via ferratas.[3][4][5][6] Indoor climbing, SPORT climbing and bouldering are also considered mountaineering by some.[7]Mountain climbers ascending Mount Rainier looking at Little Tahoma PeakA climber taking the final few STEPS ONTO the 6,160 m (20,210 ft)[1] summit of Imja Tse (Island Peak) in Nepal, 2004"Mountaineer" redirects here. For other uses, see Mountaineer (disambiguation).Unlike most sports, mountaineering lacks widely-applied formal rules, regulations, and governance; mountaineers adhere to a large variety of techniques and philosophies when climbing mountains.[8] Numerous local alpine clubs SUPPORT mountaineers by hosting resources and social activities. A federation of alpine clubs, the International Climbing and Mountaineering Federation (UIAA), is the International Olympic Committee-recognized world organization for mountaineering and climbing.[9]Explanation:have a nice day