The video shows a dolphin swimming underwater. The dolphin is seen swimming in a circular motion, and its movements are smooth and graceful. The water is clear, and the dolphin's body is visible in detail. The dolphin's fins and tail are moving in a coordinated manner, and its eyes are open and alert. The dolphin appears to be alone in the water, with no other marine life visible in the frame. The lighting in the video is natural, with sunlight filtering through the water and illuminating the dolphin's body. The video captures the beauty and elegance of the dolphin in its natural habitat.