背泳ぎ
水泳
スイミング
クロール
Teenage girl doing backstroke in swimming pool
Young woman doing backstroke in swimming pool
Teenage girl swimming underwater blowing bubbles
Swimmer training in indoor pool
平泳ぎ
Man swimming underwater
Mature woman doing backstroke in swimming pool
バタフライ
水泳選手
背泳
Female swimmer in pool, underwater view
Teenage girl doing butterfly stroke in swimming pool
Olympic Hopeful in Training