<p>Ice balls gathered in the waters of Good Harbor Bay near Glen Arbor, Michigan on January 5. This video recorded by Paul May shows the ice balls in Lake Michigan.</p><p>This phenomenon has occurred during previous winters</a>. The ice balls form when chunks of ice break off into the water and waves round them into spherical structures, according to Accuweather</a>. Credit: Paul May via Storyful</p><br />
