A box 6’ x 3’ x 3’ will barely support most motor vehicles.
So most every boat will support the tow vehicle. Water is heavy. Putting 2 tons on most boats will make the boat sit lower in the water. We used to tow a biggish canoe with a crap Fiat 124 Special TC; the canoe could’ve probably barely held the car up.
One of my friends is into that as far as is practicable. Paddled across Canada, held the speed record for circumnavigating 31 285 km2 Vancouver island by kayak. Runs a paddle making business which takes paddles to the shipper by bicycle. Gets about the city by bike, including trailering his kayak. Kayaks about on Superior every chance he gets, which is frequently. Yes, he has a house and production shop (on a river of course), but kayaking is in his soul. To some degree, comfort is a mind-set.
A good chunk of the north (meaning anything more than several hundred kilometres from the American border) is dotted with millions and millions of lakes. (Zoom in and pan around with Google Maps’s satellite view to see what I mean.) This makes roads impractical (at least in summer) but you can traverse the terrain with a combination of boating and portaging.