There are, in fact, Arctic adventure cruises on ice breakers in Finland and a few other places.  This despite the fact that ice breakers are notoriously unpleasant and uncomfortable to ride in.  They actually work by having a flat keel, charging up onto the ice ahead, and letting the weight of the boat crush it.  Over, and over, and over…  Still, for some reason, I think it’d be a pretty cool trip.  They give you snowmobiles and take you out, and put you in the puffy orange body suits and let you swim in the arctic water.  I wonder if they’d let me take a wooden bureau so I could play Titanic.