The video shows a large fish swimming in the ocean. The fish is dark in color and has a long body with fins. It is swimming near the ocean floor, which is covered in small rocks and pebbles. The water is clear, and the fish is the only visible creature in the frame. The fish moves slowly and gracefully, its fins undulating as it navigates through the water. The video captures the serene beauty of the underwater world and the majestic presence of the fish.