Painted Boats appreciates the gentle rhythm of traditional canal life, whereas Ted's ambition is to get off the canals and into mainstream life at the earliest opportunity. World War II intrudes when Ted is called up for military service, leaving the future for the pair uncertain. Location filming took place on the 20-mile stretch of the Grand Union Canal between Stoke Bruerne and Braunston in Northamptonshire, including the Blisworth Tunnel – at 1.75 miles (2.82 km) in length, the third-longest canal tunnel in Britain. Insert shots feature the industrial landscape of Stoke-on-Trent in Staffordshire, the famous Anderton Boat Lift in Cheshire and
Canal tunnel would be propelled by legging. The term "canal tunnel" does not seem to be commonly applied to tunnels used to conduct water (for irrigation, water supply, etc.), such as the 48-kilometre-long Arpa-Sevan tunnel in Armenia (see List of longest tunnels), or a number of tunnels on the Irtysh–Karamay–Ürümqi Canal in China. For those, the term water tunnel is more commonly used. Canal tunnels were made in the Kingdom of Travancore as early as 1876. Canal tunnel A canal tunnel is a tunnel for a (shipping) canal. The longest canal tunnel in the world is the Rove Tunnel in France, currently