Colourful view from an electric canoe:

Electric canoe camping videos:

No sore arms or shoulders the next day. No blisters either. Go out every nice day to a different spot for a change of scenery.

Motor mounting bracket is made from 1x4 (0.75" x 3.5") 48" long red oak from Home Depot. Cut 7" off and cut in two for clamps. Motor block is 7"x3.5"x1.75". Marine varnish on wood. Galvanized angle brackets are 3"x.75" cut and bent into a U shape to clip below gunwales diagonally. 5/16" threaded rod, nuts and loctite to wingnuts tighten motor bracket to gunwales. Threaded rod contacts and presses on 1.5" square mending plate on top of wooden motor bracket. Motor can be mounted on either side.
The sealed lead acid AGM battery weighs more than the canoe. 53 lbs.

For only $250 CAD I bought a LFP battery that is only 23 lbs and 2.5X the usable energy for 2.5X the endurance. 5-10X the life of lead acid. LFP is much cheaper per energy stored and much easier to handle with half the weight. Will not overheat or catch on fire even if punctured. Long life is much better environmentally. 

2+ hours on the previous AGM battery is about half the battery capacity but with lead acid it's not a good idea to use much more than half capacity for best battery life. The battery is the one I already had for silent, emission free backup power at home. With a pure sine inverter it can run the gas furnace, fridge, router, laptops, phones, lights etc for 10+ hours during the many short outages we have. 20 hours if the furnace isn't needed. The furnace only uses 200 watts and runs 25% of the time usually so only 50 watts continuous. Can charge the battery with the car for outages lasting days. Haven't needed to do that yet.

LFP can be used down to zero capacity no problem. LFP and lead acid cannot be connected in parallel because of different voltage characteristics. For my backup power I can hook them up separately as needed.