

http://www.daytondailynews.com/videos/news/national/video-giant-ice-boulders-along-lake-michigan/vCMzpP/?icmp=cmgcontent_internallink_relatedcontent_2013_partners2
Huge balls of ice have been found along the shores of Lake Michigan in Glen Arbor on January 7. The large ice chunks broke off from over the water and have been shaped into balls by the freezing waves. This video shows these rolly polly ice boulders crashing against the shores of the northern Lake Michigan shoreline. Credit: Paul May