Interesting Idea Mike.

I live downtown in a city of about a million. If everybody were trying to get the hell out of town, I'd be stuck unless I got on my bike or started walking...but the city isn't really dense and that would take a while just to get to the city limits.

On the other hand I can walk to the North Saskatchewan River in 15 minutes. If I had to, I could carry a River Kayak (or a small canoe?) that far. It's the biggest river system in Canada and is navigable for almost 1300km. Could get pretty far from the city if one had to...or to another city.

Damn. Makes me want to take up kayaking!