In this Feb. 2, 2014 photo people visit the caves at Apostle Islands National Lakeshore in northern Wisconsin, transformed into a dazzling display of ice sculptures by the arctic siege gripping the ... more 
In this Feb. 2, 2014 photo people visit the caves at Apostle Islands National Lakeshore in northern Wisconsin, transformed into a dazzling display of ice sculptures by the arctic siege gripping the Upper Midwest. The caves are usually are accessible only by water, but Lake Superior’s rock-solid ice cover is letting people walk to them for the first time since 2009. (AP Photo/Minneapolis Star Tribune, Brian Peterson) MANDATORY CREDIT; ST. PAUL PIONEER PRESS OUT; MAGS OUT; TWIN CITIES TV OUT less 
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Associated Press | Photo By Minneapolis Star Tribune, Brian Peterson
Fri, Feb 14, 2014 1:30 AM EST