This video captures a large, black 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 ocean is a deep blue color, and the whale's skin appears smooth and shiny. The whale moves slowly and gracefully through the water, creating gentle ripples and waves around it. There are no other objects or creatures visible in the video, and the focus is solely on the whale and its movements.