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Ice Swimming Aqua Sphere World Championships
BURGHAUSEN, GERMANY - JANUARY 06: Participants compete in the women's races in Woehrsee lake on January 6, 2017 in Burghausen, Germany. Swimmers will compete in several disciplines over the next few days and will be exceptionally challenged today as temperatures have plummeted well below zero. (Photo by Johannes Simon/Bongarts/Getty Images)