The video shows a person swimming in a pool. The swimmer is moving forward in the water, and the camera is positioned underwater, capturing the swimmer's movements. The swimmer's arms are extended forward, and their legs are kicking in a rhythmic motion. The water is clear, and the swimmer is wearing a swimsuit. The swimmer's movements are smooth and continuous, indicating that they are experienced in swimming. The pool appears to be indoors, and there are no other swimmers visible in the video.