This is a BIG ship that is a part of Great Lakes history - not to be missed. There are interesting exhibits in the hold on a variety of GL-related topics. They advertise a "self-guided" tour but we had excellent personal guides pretty much the whole time. You get to see almost everything on board - wheelhouse, officers quarters, passenger rooms, cooking/dining spaces, crew quarters, engineering areas, engines, etc. Something of interest for everybody! The ship is moored at a dock behind the Science Center so you can do both or either one if you wish.