A surfer catches a wave on a freezing water of the Eisbach in Munich's famous English garden, Germany January 5, 2017. (Photo by Michael Dalder/Reuters)





A surfer catches a wave of the freezing water of the Eisbach in Munich's famous English garden, Germany January 5, 2017. (Photo by Michael Dalder/Reuters)





A surfer catches a wave on a freezing water of the Eisbach in Munich's famous English garden, Germany January 5, 2017. (Photo by Michael Dalder/Reuters)





Surfers catch a wave of the freezing water of the Eisbach in Munich's famous English garden, Germany January 5, 2017. (Photo by Michael Dalder/Reuters)





Participants wearing Kokoshnik, the Russian traditional headwear, perform during winter swimming festival in the town of Podolsk, south of Moscow, Russia January 5, 2017. (Photo by Maxim Shemetov/Reuters)





Participants wearing Kokoshnik, the Russian traditional headwear, perform during winter swimming festival in the town of Podolsk, south of Moscow, Russia January 5, 2017. (Photo by Maxim Shemetov/Reuters)





A participant of a festival of winter swimming plays balalaika after taking a dip into the ice water in the town of Podolsk, south of Moscow, Russia January 5, 2017. (Photo by Maxim Shemetov/Reuters)





A participant takes part in a festival of winter swimming in the town of Podolsk, south of Moscow, Russia January 5, 2017. (Photo by Maxim Shemetov/Reuters)





A participant wearing Kokoshnik, the Russian traditional headwear, walks out of the water during winter swimming festival in the town of Podolsk, south of Moscow, Russia January 5, 2017. (Photo by Maxim Shemetov/Reuters)





Participants take part in a festival of winter swimming in the town of Podolsk, south of Moscow, Russia January 5, 2017. (Photo by Maxim Shemetov/Reuters)





A participant of a festival of winter swimming warms up in the town of Podolsk, south of Moscow, Russia January 5, 2017. (Photo by Maxim Shemetov/Reuters)





An Orthodox faithful braves the cold waters during Epiphany day celebrations in the southern suburb of Faliro in Athens, Greece January 6, 2017. (Photo by Alkis Konstantinidis/Reuters)





Orthodox faithful attend Epiphany day celebrations in the southern suburb of Faliro in Athens, Greece January 6, 2017. (Photo by Alkis Konstantinidis/Reuters)





Orthodox faithful jump to catch a wooden crucifix during Epiphany day celebrations in the southern suburb of Faliro in Athens, Greece January 6, 2017. (Photo by Alkis Konstantinidis/Reuters)





Orthodox faithful hold a wooden crucifix during Epiphany day celebrations in the southern suburb of Faliro in Athens, Greece January 6, 2017. (Photo by Alkis Konstantinidis/Reuters)





Orthodox faithful hold a wooden crucifix during Epiphany day celebrations in the southern suburb of Faliro in Athens, Greece January 6, 2017. (Photo by Alkis Konstantinidis/Reuters)





An Orthodox faithful kisses a wooden crucifix during Epiphany day celebrations in Thessaloniki, Greece January 6, 2017. (Photo by Alkis Konstantinidis/Reuters)