The video shows a swimmer diving into a pool and swimming underwater. The swimmer is wearing a swim cap and goggles. The water is clear and blue, and the swimmer is moving quickly through the water. The swimmer's movements are smooth and controlled, and they appear to be skilled at swimming. The video captures the swimmer's movements from different angles, providing a clear view of their technique. The swimmer's body is visible under the water, and they are moving in a straight line. The video does not contain any other people or objects, and the focus is solely on the swimmer and their movements.