People attend an Orthodox religious service during a water blessing ceremony on Epiphany Day in the village of Velikoye, Yaroslavl region, January 18, 2015. Orthodox believers mark Epiphany on January 19 by immersing themselves in icy waters regardless of the weather. (Photo by Sergei Karpukhin/Reuters)

A priest conducts an Orthodox religious service during a water blessing ceremony on Epiphany Day in the village of Velikoye, Yaroslavl region, January 18, 2015. (Photo by Sergei Karpukhin/Reuters)

A man swims in the ice cold water of a lake on the eve of Russian Orthodox Epiphany in Minsk, Belarus, late Sunday, January 18, 2015. Orthodox Church believers celebrate Epiphany on Jan. 19. (Photo by Sergei Grits/AP Photo)

Russian woman and man bathe in the icy water to mark Epiphany as lifeguards watch over them in Moscow, Russia, late Sunday, January 18, 2015. The temperature in Moscow is 1 degrees C (34 degrees F). Thousands of Russian Orthodox Church followers plunged into icy rivers and ponds across the country to mark Epiphany, cleansing themselves with water deemed holy for the day. Water that is blessed by a cleric on Epiphany is considered holy and pure until next year's celebration, and is believed to have special powers of protection and healing. (Photo by Pavel Golovkin/AP Photo)

An Orthodox priest leads a service on the eve of Epiphany in Minsk, January 18, 2015. Orthodox believers mark Epiphany, which falls on January 19, by immersing themselves in icy waters regardless of the weather. (Photo by Vasily Fedosenko/Reuters)

A man reacts after dipping himself into a icy lake in Minsk, January 18, 2015. (Photo by Vasily Fedosenko/Reuters)

People attend an Orthodox religious service during a water blessing ceremony on Epiphany Day in the village of Velikoye, Yaroslavl region, January 18, 2015. (Photo by Sergei Karpukhin/Reuters)

People attend an Orthodox religious service during a water blessing ceremony on Epiphany Day in the village of Velikoye, Yaroslavl region, January 18, 2015. (Photo by Sergei Karpukhin/Reuters)

A woman immerses herself in an ice hole in the Sea of Japan, at a temperature of about minus 7 Celsius, during celebrations for Russian Orthodox Epiphany in Amur Bay, in Russia's far eastern port of Vladivostok January 18, 2015. Orthodox believers mark Epiphany on January 19 by immersing themselves in water. (Photo by Yuri Maltsev/Reuters)

A man immerses himself in an ice hole in the Sea of Japan, at a temperature of about minus 7 Celsius, during celebrations for Russian Orthodox Epiphany in Amur Bay, in Russia's far eastern port of Vladivostok January 18, 2015. (Photo by Yuri Maltsev/Reuters)

A man gets ready before immersing himself in an ice hole in the Sea of Japan, at a temperature of about minus 7 Celsius, during celebrations for Russian Orthodox Epiphany in Amur Bay, in Russia's far eastern port of Vladivostok January 18, 2015. (Photo by Yuri Maltsev/Reuters)

A woman immerses herself in an ice hole in the Sea of Japan, at a temperature of about minus 7 Celsius, during celebrations for Russian Orthodox Epiphany in Amur Bay, in Russia's far eastern port of Vladivostok January 18, 2015. (Photo by Yuri Maltsev/Reuters)

People gather on the ice-covered Volga river during preparations on Epiphany Day in the town of Tutayev, Yaroslavl region, January 18, 2015. Orthodox believers mark Epiphany on January 19 by immersing themselves in icy waters regardless of the weather. (Photo by Sergei Karpukhin/Reuters)

People immerse themselves in an ice hole in the Sea of Japan, at a temperature of about minus 7 Celsius, during celebrations for Russian Orthodox Epiphany in Amur Bay, in Russia's far eastern port of Vladivostok, January 18, 2015. (Photo by Yuri Maltsev/Reuters)

A man immerses himself in an ice hole in the Sea of Japan, at a temperature of about minus 7 Celsius, during celebrations for Russian Orthodox Epiphany in Amur Bay, in Russia's far eastern port of Vladivostok, January 18, 2015. (Photo by Yuri Maltsev/Reuters)

Orthodox churches are seen on the banks of the ice-covered Volga river on Epiphany Day in the town of Tutayev, Yaroslavl region, January 18, 2015. (Photo by Sergei Karpukhin/Reuters)

A man immerses himself in icy water during celebrations for Russian Orthodox Epiphany in Moscow January 19, 2015. (Photo by Maxim Zmeyev/Reuters)

People gather at the so-called Izmailovo Kremlin, one of the capital's museums and sightseeing attractions, during celebrations for Russian Orthodox Epiphany in Moscow January 19, 2015. (Photo by Maxim Zmeyev/Reuters)

People gather at the so-called Izmailovo Kremlin, one of the capital's museums and sightseeing attractions, during celebrations for the Russian Orthodox Epiphany in Moscow January 19, 2015. (Photo by Maxim Zmeyev/Reuters)

People queue to take a dip in the icy waters of the Istra river during Orthodox Epiphany celebrations in the town of Istra in the Moscow Region, January 19, 2015. (Photo by Maxim Zmeyev/Reuters)

A man immerses himself in the icy waters of the Volga river during celebrations for Russian Orthodox Epiphany in the town of Tutayev, Yaroslavl region, January 19, 2015. (Photo by Sergei Karpukhin/Reuters)

A man takes a dip in the icy waters of the Istra river during Orthodox Epiphany celebrations in the town of Istra in the Moscow Region, January 18, 2015. (Photo by Maxim Zmeyev/Reuters)

A man immerses himself in the icy waters of the Volga river during celebrations for Russian Orthodox Epiphany in the town of Tutayev, Yaroslavl region, January 19, 2015. (Photo by Sergei Karpukhin/Reuters)

A man walks out after immersing himself in the icy waters of the Volga river during celebrations for Russian Orthodox Epiphany in the town of Tutayev, Yaroslavl region, January 19, 2015. (Photo by Sergei Karpukhin/Reuters)

An Orthodox priest immerses a cross in the Bolshaya Almatinka river to bless its water during an Epiphany ceremony in Almaty, Kazakhstan January 19, 2015. (Photo by Shamil Zhumatov/Reuters)

A boy bathes in the icy water of the Bolshaya Almatinka river during an Epiphany celebration in Almaty January 19, 2015. (Photo by Shamil Zhumatov/Reuters)

A man bathes in the icy water of the Bolshaya Almatinka river during an Epiphany celebration in Almaty January 19, 2015. (Photo by Shamil Zhumatov/Reuters)

A man bathes in the icy water of the Bolshaya Almatinka river during an Epiphany celebration in Almaty January 19, 2015. (Photo by Shamil Zhumatov/Reuters)

A man hands over a boy to an emergency rescuer after bathing him in the icy water of the Bolshaya Almatinka river during an Epiphany celebrations in Almaty January 19, 2015. (Photo by Shamil Zhumatov/Reuters)

People immerse themselves in an ice hole in the Chulym river, with the air temperature at about minus 12 degrees Celsius (10.4 degrees Fahrenheit), during celebrations for the Russian Orthodox Epiphany outside of the town of Nazarovo, Krasnoyarsk region January 19, 2015. (Photo by Ilya Naymushin/Reuters)

Women immerse themselves in an ice hole in the Chulym river, with the air temperature at about minus 12 degrees Celsius (10.4 degrees Fahrenheit), during celebrations for the Russian Orthodox Epiphany outside of the town of Nazarovo, Krasnoyarsk region January 19, 2015. (Photo by Ilya Naymushin/Reuters)

A man immerses himself in an ice hole in the Chulym river, with the air temperature at about minus 12 degrees Celsius (10.4 degrees Fahrenheit), during celebrations for Russian Orthodox Epiphany outside of the town of Nazarovo, Krasnoyarsk region January 19, 2015. (Photo by Ilya Naymushin/Reuters)

People immerse themselves in an ice hole in the Chulym river, with the air temperature at about minus 12 degrees Celsius (10.4 degrees Fahrenheit), during celebrations for the Russian Orthodox Epiphany outside of the town of Nazarovo, Krasnoyarsk region January 19, 2015. (Photo by Ilya Naymushin/Reuters)

A man immerses himself in the icy waters of the Volga river during celebrations for the Russian Orthodox Epiphany in the town of Tutayev, Yaroslavl region January 19, 2015. (Photo by Sergei Karpukhin/Reuters)

A man immerses himself in the icy waters of the Volga river during celebrations for Russian Orthodox Epiphany in the town of Tutayev, Yaroslavl region January 19, 2015. (Photo by Sergei Karpukhin/Reuters)

A man and his daughter immerse themselves in an ice hole in the Chulym river, with the air temperature at about minus 12 degrees Celsius (10.4 degrees Fahrenheit), during celebrations for Russian Orthodox Epiphany outside of the town of Nazarovo, Krasnoyarsk region January 19, 2015. (Photo by Ilya Naymushin/Reuters)

A man crosses himself as he dips into the icy waters of a lake as part of celebrations for Epiphany, near the village of Pilnitsa, northeast of Minsk January 19, 2015. (Photo by Vasily Fedosenko/Reuters)

A Russian Orthodox believer bathes in the icy water on Epiphany at a pond in Tyarlevo village outside St. Petersburg, Russia, early Monday, January 19, 2015. (Photo by Dmitry Lovetsky/AP Photo)

Belarusians warm themselves after swimming in the ice cold water of a lake on the eve of Russian Orthodox Epiphany in Minsk, Belarus, late Sunday, January 18, 2015. (Photo by Sergei Grits/AP Photo)

People watch as a man swims in the ice cold water of a lake on the eve of Russian Orthodox Epiphany in Minsk, Belarus, late Sunday, January 18, 2015. (Photo by Sergei Grits/AP Photo)

A woman reacts as she prepares to swim in the ice cold water of a lake on the eve of Russian Orthodox Epiphany in Minsk, Belarus, late Sunday, January 18, 2015. (Photo by Sergei Grits/AP Photo)