The video shows a large fish swimming in the ocean. The fish is dark in color and has a long tail. It is swimming near the surface of the water, which is a deep blue color. The fish appears to be alone in the water, and there are no other fish or objects visible in the video. The water is relatively calm, with only small waves visible on the surface. The fish is moving slowly and gracefully, and its movements are smooth and effortless. The video does not show any other landmarks or features, and the focus is solely on the fish and its movements.