Rob mentioned that “There isnt a bridge that you can`t get round with the right kit!” when we were discussing the feasibility of going round the Great Loop circuit (truly an eternal optimist, he is). However, I neglected to mention the other limiting factor:

Trent-Severn Waterway: Minimum depths are 6 feet under normal conditions. In a few places the water depth may be less than 6 feet. Any vessel drawing more than 5 feet must contact the Trent-Severn Waterway office in Peterborough (800/663-2628).
Rideau Canal: Under normal conditions, there is approximately 5 feet of water in the navigation channel during the navigation season. This depth is only available in the center portion, which is a strip 33 feet wide in the center of the navigation channel.

KJ drafts 6.5 ft. Not sure I’m ready to play Scrape The Barnacles Off On The Canal! And dragging her round on a truck would be quite the undertaking!
The St Lawrence
system does look more and more interesting.