The video shows a manatee swimming in the water. The manatee is a large, gray animal with a flat, paddle-shaped tail. It has two flippers and a snout that it uses to move around in the water. The manatee is seen swimming near the bottom of the water, occasionally coming up to the surface. The water is clear, and sunlight can be seen shining through from above. There are no other animals or objects visible in the video.