Brocken is the Harz mountain highest peak, standing 1,141 metres above sea level.
Europe has been hit by heavy snow and sub-zero temperatures in the past week, causing widespread disruption across the continent, particularly in the U.K. and Germany, with several major airports forced to suspend flights.
In the Polish spa town Kołobrzeg enthusiasts of icy waters gathered for a swimming rally.
Almost a thousand people from across the country took part in the Kołobrzeg winter swimming festival in the icy waters of the Baltic Sea.
At freezing temperatures, strong winds and high waves they seek happiness and joy in the physically challenging feat.
