caption: The image shows a large group of sea urchins swimming in the ocean, surrounded by sand. The water is crystal clear, allowing us to see the intricate details of the shells and the vibrant colors of the coral. The sand is a light tan color, and the sea anemones are a variety of colors, ranging from bright pinks and purples to deep blues and greens. The sun's rays are reflecting off the surface of the water, creating a beautiful sparkle.