The video shows a large whale swimming in the ocean. The whale is mostly submerged, with only its back and dorsal fin visible above the water's surface. The whale is moving slowly and gracefully through the water, creating a trail of bubbles and ripples behind it. The ocean is a deep blue color, and the whale's skin appears to be a dark gray color. There are no other objects or creatures visible in the video, and the whale is the main focus of the footage.