A crew member of the Coast Guard Cutter Bristol Bay supervises the retrieval of a seasonal buoy in Cleveland Harbor to replace it with an ice buoy, November 28, 2017. Every fall the Coast Guard replaces seasonal buoys on the Great Lakes with buoys that are more capable for staying on station in ice and every spring they are switched back again. (U.S. Coast Guard photo by Petty Officer 3rd Class Brian McCrum)