The image shows a close-up of a rocky surface covered in small rocks and pebbles. The rocks are of various sizes and colors, including brown, gray, and white. In the center of the image, there is a large rock with a white substance on it. The substance appears to be a mixture of white and gray colors, possibly lichen or fungus. There are also a few small shells scattered around the rock, some of which are partially submerged in the water. The background is dark and out of focus, making the rocks and substance stand out.