アクアロビクス

noun

aquarobics; water aerobics

Aerobic exercise performed in water, typically in a swimming pool. The term is a direct loan from English and is used in fitness contexts.

• 週しゅうに2回かい、スポーツクラブでアクアロビクスをやっています。

  I do aquarobics at the sports club twice a week.