The video shows a large whale swimming in the ocean. The whale is dark gray in color and has a long tail. It moves gracefully through the water, with its tail fin visible in the background. The whale's skin appears smooth and shiny, reflecting the light from above. The water is a deep blue color, and there are no other visible creatures or objects in the frame. The whale is the only focus of the video, and it moves slowly and calmly through the water.