HAMBURG, GERMANY - FEBRUARY 10: kids play ice hockey on the frozen Aussenalster river during the 'Alstervergnuegen' on February 10, 2012 in Hamburg, Germany. The very popular annual city festival 'Alstervergnuegen' takes place around the Alster lake in Hamburg. Last time the Alster was official approved for the 'Alstervergnuegen' is 15 years ago. (Photo by Joern Pollex/Getty Images)
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