Club activities held at schools or similar institutions (extracurricular clubs), equivalent to 'bukatsudō' (school clubs).
高校ではクラブ活動が盛んで、週に何度も練習がある。
Club activities are active in high school, with practice several times a week.
クラブ活動で合宿に行く予定だ。
We're planning to go on a training camp for club activities.
部活と呼ばれることもあるが、クラブ活動という言い方も一般的だ。
They are sometimes called 'bukatsu', but the term 'club activities' is also common.