The image shows a close-up of a coral reef. The coral appears to be a bright white color and is growing on a bed of dark brown rocks. The rocks are covered in small patches of green algae and other marine debris. In the center of the image, there is a small sea urchin, which is a dark brown color with a pointed tip. The background is blurred, but it seems to be an underwater environment. The image is taken from a low angle, looking up at the coral.