Subject: Great Canal Journeys - Series 11 Episode 2: London's Waterways (Part 2)
Description: Concluding their tour of London's waterways, Sheila and Gyles journey the Lee Navigation, tackle their first manual lock and some terrifyingly tight turns, and visit the Royal Gunpowder Mills. ( https://www.channel4.com/programmes/great-canal-journeys/on-demand/70569-002 )