There's a nice slice of canal that runs from Tiverton through Samford Peverell in Central Devon ... very peaceful ... but no otters and no tunnels. I believe the industrial god Brunel devised some unique methods for getting the canals going in the West Country.A few decades back, I recall that solo, Atlantic row-boatman, Shay Blyth was advocating for the canal system for some reason. I remember that fists solved the right-of-way if two barges should encounter each other in a tunnel ...
Meanwhie in the US, I believe that there are a number of titles celebrating canals. Two weekends ago, fellow (Liam's Brother who was that?) sang a barge song at the Pier in New York's Southstreet Seaport: although dressed in black he didn't sound like J. Cash ...
Cheers, Brian