Navigating the Northwest Passage in the Sea King. An ekranoplan--which runs just as well over sea ice as over open water--is perfectly suited to Arctic operations. An added bonus is that the depth of the water isn't an issue, so it can negotiate waterways much too shallow for an ordinary ship.
I'm spending the night at Resolute Bay, just a few miles south of the 75ºN limit of X-Plane's global scenery. (Although I can go as far north as 80º with old ENV files available online.) Tomorrow I'll be heading for Alaska.