Stock Photo - Winter swimmers from Polar bear club meet for welcome midwinter at the river Jihlava. They did not have to cut the ice, because the weather was so warm. The air temperature was around six degrees Celsius and the water temperature was three above zero, in Czech Republic, on December 20, 2014. (CTK Photo/Lubos Pavlicek)

Stock Photo: Winter swimmers from Polar bear club meet for welcome midwinter at the river Jihlava. They did not have to cut the ice, because the weather was so warm.

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