I don't suppose they sell the Electric 4 wheel drive version in Canada, do they? That would be helpful. I don't know what the ground clearance is on the Cube, but it's not very much, I'm sure. Minimal overhang, that's for sure. More aggrressive tires would only be suitable for off road purposes. You'll just have to be very CAREFUL. :-\
Even a Cube will be able to carry a Canoe and your camping gear. With more than 2 people you might run into problems