Apostle Island ice caves inaccessible this winter, likely to become rare as Lake Superior warms

In 2014 and 2015 the Apostle Islands Ice Caves drew thousands of people to the icy shores of Lake Superior. However, despite the recent cold snap, the National Park Service says the lake ice isn’t stable enough to allow people to view the ice caves. Opportunities to view the ice caves from frozen Lake Superior are becoming rarer. Read the full story by WXPR-Rhinelander, WI.