The video shows a swimmer in a pool, performing a freestyle stroke. The swimmer is wearing a green swim cap and goggles. The pool is surrounded by a deck with lane dividers. The water is a clear blue color, and the sky is visible in the background. The swimmer's arms are moving in a circular motion, and their legs are kicking in a fluttering motion. The swimmer's head is turned to the side, and their body is partially submerged in the water.