Natural phenomena. Formation of <a href="//commons.wikimedia.org/wiki/Category:Ball_ice" title="Category:Ball ice">ice balls</a> (diameter 5–10 cm) in Stroomi Beach, Tallinn, Estonia. Sunset with the mist over the sea. Temperatures around minus 15–20 degrees.
<a href="//commons.wikimedia.org/wiki/User:Aleksandr_Abrosimov" title="User:Aleksandr Abrosimov">Aleksandr Abrosimov</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>