noun, noun or participle which takes 'suru'
stream climbing; sawanobori
A recreational outdoor activity that involves hiking or climbing up a mountain stream, often through water and over rocks. Can be used as a noun or with する to describe the action.
週末に友人と沢登りに行った。
I went stream climbing with a friend over the weekend.
沢登りをするには専用の靴
You need special shoes for stream climbing.