Some graffiti on a wall at Ocean Beach. The pile of sand came from the hole in the wall. I couldn't tell if it was natural or planned that way. I think it was natural though because there were a number of holes in the wall and the sand pile at the base of each was about the same size and shape which probably would have been difficult to do intentionally. I'm on the beach side of the wall and the sand would blow up onto the sidewalk or road on the other side of the wall and then blow back through the hole. Maybe. Who knows.