noun, noun or participle which takes 'suru'
walking outside; outdoor walking
Refers to the act of walking outdoors, often for leisure or exercise. Can be used as a noun or with する to mean 'to take a walk outside'.
天気がいいので、外歩きを楽しんだ。
The weather was nice, so I enjoyed walking outside.
毎朝、健康のために外歩き
Every morning I go for a walk outside for my health.