The video shows a person swimming underwater. The camera is positioned above the water, capturing the swimmer's movements as they move through the water. The swimmer's body is visible, and they appear to be wearing a swimsuit. The water is clear, and the swimmer is moving at a steady pace. The swimmer's arms are seen 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 looking towards the camera. The light from the sun is reflecting off the water's surface, creating a shimmering effect. The video does not contain any other objects or people, and the focus is solely on the swimmer's movements.