The image is an underwater photograph of a yellow sea slug swimming in the ocean. The sea slug is in the center of the image, with its body partially submerged in the water. It has a long, slender body with a pointed snout and two small fins on its head. Its body is covered in small bumps and ridges, and its eyes are large and round. The background is filled with green seaweed and rocks, and there is a small amount of coral and other marine life visible. The water is clear and the sunlight is filtering through the surface, creating a beautiful reflection of the sea slug.