The image is an underwater photograph of a coral reef. The coral appears to be a type of coral bleaching, with small, round structures that are covered in a light blue-green color. The structures are densely packed together, with some overlapping each other. The reef is covered in small rocks and pebbles, and there are a few small fish swimming around the coral. The water is clear, allowing us to see the coral and other marine life below. The image is taken from a low angle, looking up at the coral in the center of the image.