Not Green Bay, Not Whitefish Bay, not Sheboygen, nor Marinette. Here's another clue: It's not in Wisconsin. As previously stated, it's a smaller, lesser known port; they can't handle the big ore carriers like the Edmund Fitzgerald, but they can handle smaller ships like this:
It's Turku alright. That ship, M/s Bore, is nowadays a museum/hotel. Half a turn round and you'd see the Turunlinna (Turku castle) The other one I believe to be the gunboat Karjala (Karelia)