A climber taking the final few steps onto the 6,160 m (20,210 ft)
(Island Peak) in
Mountaineering, or alpinism, is the set of activities that involves ascending  mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas.     Indoor climbing, sport climbing and bouldering are also considered mountaineering by some.
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.
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.
"Nepal Mountaineering Association". web page. 2008 . Retrieved . 2 June 2011
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Apollo, Michal (2017). "The true accessibility of mountaineering: The case of the High Himalaya". Journal of Outdoor Recreation and Tourism. 17: 29–43. doi: 10.1016/j.jort.2016.12.001.
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