15 February 2026, Poland, Krakau: An aerial view of snow and ice covered Zakrzowek, a landmark man made lake in central Krakow. The ice cold swim popularity rises in Poland. The 2026 winter in Poland proves the coldest in years with temperatures dropping to -25 degrees Celsius in some parts of the country. Photo: Dominika Zarzycka/SOPA Images via ZUMA Press Wire/dpa