The video shows a manatee swimming in the water. The manatee is a large, gray, and slow-moving sea mammal. It has a flat, paddle-shaped tail and two small flippers. The manatee is seen swimming in a calm and relaxed manner, occasionally moving its flippers to propel itself forward. The water is clear, and the sunlight is shining through, creating a serene and peaceful atmosphere. The manatee appears to be alone in the water, with no other sea creatures visible in the video.