The video shows a close-up of a sea urchin moving slowly across the ocean floor. The sea urchin has long, sharp spines that are visible as it moves. The ocean floor is covered in small rocks and pebbles, and the water is clear, allowing for a good view of the sea urchin. The sea urchin's movement is slow and steady, and it appears to be searching for food or exploring its surroundings. The video provides a detailed look at the sea urchin's physical characteristics, including its size, shape, and color.