What a cool kid (and Dad!). Finds a discarded small boat on the Roding. Fixes it up. And then takes it from Hertford to the Thames as; "possibly the first boat to navigate the whole of the navigable Lea by an electric motor powered by solar energy alone." to get sponsorship for the Cody Dock project.
https://www.facebook.com/pages/Kingfisher/292925227506893
http://spacehive.com/codydock

I've done that trip by bicycle but I'd love to do it by small boat.