The video shows a large whale swimming in the ocean. The whale's body is mostly submerged, with only its back and dorsal fin visible above the water's surface. The whale is moving slowly and gracefully, with its body undulating in a rhythmic pattern. The water is a deep blue color, and the light reflects off the whale's skin, creating a shimmering effect. There are no other objects or creatures visible in the video, and the focus is solely on the whale and its movements.