Swimming provides an excellent full-body cardiovascular workout that tones the arms, legs, and core muscles. It can be enjoyed by people of all fitness levels and is a useful skill for life. There are four main competitive swimming strokes - breaststroke, backstroke, butterfly, and freestyle crawl - as well as other activities that can be done in the water. Swimming is also a low-impact activity that can be continued throughout one's life and offers health benefits like improved cardiorespiratory fitness and muscle mass.