When the Chicago River freezes over, usually the police boat comes and breaks up the ice. I’m not sure if it’s for security reasons (people thinking they can walk on the ice?) or if it’s to help the embankments from cracking (ice expanding), or maybe the police just like to have fun and break ice.
I like it when the ice is not all broken up. I mean, i like it still when it’s broken up. But it’s nice when it’s a flat white scene.