Siberian beach snowballs

Gizmodo has an article by George Dvorsky (originally from the Siberian Times) about an odd phenomenon in Russia:

Incredible photographs from a beach in Nyda, Siberia, show thousands of naturally-formed snowballs spread across an eleven mile stretch of coast. This is now the best place in the world to have a snowball fight.
The giant snowballs began to appear on the beach about a week and a half ago. Locals in the village of Nyda, situated on the Yamal Peninsula just above the Arctic circle, have never seen anything quite like it. The balls of ice and snow range in size from just a few inches across to almost three feet wide, and they number in the thousands.
The snowballs look as if they were meticulously crafted by hand and then strategically placed across the beach, but they formed through natural processes. As Sergei Lisenkov from Russia’s Arctic and Antarctic Research Institute explained in the Siberian Times, they’re caused by a rare environmental process in which small pieces of ice form and are rolled by the wind and water: 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.
It is a rare natural phenomenon. As a rule, grease ice forms first as slush, then a combination of the action of the wind, the outlines of the coastline and the temperature may lead to the formation of such balls.
Though exceptionally rare, this sort of thing has been seen before, including in 2014, when balls like these appeared on the shore of Lake Michigan.

Rico says that Nature continues to amaze...