As a volunteer and crew member decorate the Coast Guard Cutter Mackinaw for tomorrow's Christmas Ship festivities, school children look out from the ship's bridge during their tour of the ship Dec. 6, 2013. The Mackinaw, serving as this year's Christmas Ship, arrived at Chicago's Navy Pier with more than 1,200 trees, purchased by the Christmas Ship Committee, for distribution to deserving families. (U.S. Coast Guard photo by Chief Petty Officer Alan Haraf)