Three people in various stages of swimming strokes race along colorful lane markers .
The three people are lounging on the beach .
Three people in various stages of swimming strokes race along colorful lane markers.
The three people are lounging on the beach.
People can not swimming  in water,  and on land lounging on the beach at the same time.
People can not swimming in water , and on land lounging on the beach at the same time .