Giant snowballs on a Russian beach

A strange and beautiful sight greeted locals in the Gulf of Ob, in northwest Siberia, after thousands of natural snowballs formed on the beach. An 11-mile (18km) stretch of coast was covered in the icy spheres. The sculptural shapes range from the size of a tennis ball to almost 1m (3ft) across. They result from a rare environmental process where small pieces of ice form, are rolled by wind and water, and end up as giant snowballs.
http://www.bbc.com/news/world-europe-37883003