noun, noun or participle which takes 'suru', intransitive verb
mountain climbing; mountaineering; ascent of a mountain
General term for climbing a mountain, from casual hiking to serious mountaineering. Often used with する to mean 'to climb a mountain'.
Antonyms: 下山
週末に友人と登山に行く。
I'm going mountain climbing with a friend this weekend.
彼は毎年夏に富士山に登山する。
He climbs Mt. Fuji every summer.