At this Russian lake, winter is the best time for a marathon
Clip: 03/13/2017 | 2m 42s
In our NewsHour Shares moment of the day, Siberia's Lake Baikal is the perfect spot for a midwinter marathon. Runners take a 26.2 mile dash from one side of a lake to another in sub-freezing temperatures over nothing but ice.
Aired: 03/13/17
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