The video shows a person swimming in a pool. The camera is positioned underwater, capturing the swimmer's movements from below. The swimmer is wearing a black swimsuit and goggles, and is using a yellow and black swim cap. The water is a clear blue, and the pool has multiple lanes marked by yellow lane dividers. The swimmer's arms are moving in a freestyle stroke, and their legs are kicking in a flutter kick. The swimmer's head is visible above the water, and they are moving forward through the water.