The video shows a sea turtle swimming in the ocean. The turtle is large and has a patterned shell with a mix of brown and orange colors. It has a long neck and flippers that it uses to navigate through the water. The ocean is a deep blue color, and there are coral reefs visible in the background. There is also a scuba diver in the water, wearing a wetsuit and flippers. The diver is swimming near the turtle, but not disturbing it.