Thats sutch a great Idear!I've done quite a bit of narrowboating with Guides, especialy through Warwick. The's usualy quite a bit of music in the way of Campfire songs (a couple of years ago the darling little angles that our my guides added an extra verse on "found a peenut" when I almost choked on 1 playing cards!)
But to combine it with the folk feastival is inspired!