Droves of people are braving the cold to hike a frozen Lake Superior to see dramatic ice caves in northern Wisconsin. Since the caves were deemed accessible in January, more than 35,000 have hiked to ... more 
Droves of people are braving the cold to hike a frozen Lake Superior to see dramatic ice caves in northern Wisconsin. Since the caves were deemed accessible in January, more than 35,000 have hiked to see the ice formations. (Feb. 13) less 
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Thu, Feb 13, 2014 1:24 AM EST