Thousands of snowballs have formed on a beach along Siberia’s Gulf of Ob. In an article in the Siberian Times about the phenomenon, a spokesman for the Arctic and Antarctic Research Institute explained that the balls are rare, but naturally occurring.
When the water in the gulf rose, it came into contact with the frost. The beach began to be covered with ice. Then the water began to slowly retreat, and the ice remained. Its pieces were rolling over in the wet sand, and turned into these balls.