The video shows a person swimming in a pool. The camera is positioned underwater, capturing the swimmer's movements as they move through the water. The swimmer's body is visible, and they appear to be swimming in a straight line. The water is clear and blue, and the pool is surrounded by tiles. The swimmer's arms are moving in a coordinated manner, suggesting that they are swimming in a freestyle stroke. The camera angle changes throughout the video, providing different perspectives of the swimmer's movements.