The video shows an underwater scene with a large rock formation in the background. In the foreground, there is a sea snake slithering across the ocean floor, which is covered in rocks and coral. The sea snake has a long, slender body with a patterned skin that is predominantly white with dark stripes. The water is clear, and the light from above the water's surface is visible, illuminating the scene. The sea snake moves smoothly and gracefully, undulating its body as it navigates the rocky terrain.