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Swimming is one of the favorite sports for men, women and children. the obvious of fitness function and interest. From birth, human beings need to grow up in amniotic fluid of mother and fetus for 10 months. Their living environment is similar to water area. Water childbirth, baby swimming and water rehabilitation are all targeted activities.

Swimming contests are divided into backstroke, breaststroke, butterfly and freestyle according to the different strokes. Freestyle is the fastest, breaststroke posture is more beautiful, butterfly is the most explosive and backstroke is the most energy-saving. In a swimming pool, a well-balanced swimming competition is also very ornamental and competitive.