Grand Union Canal - S33.E27

Matt Baker explores the stretch of the Grand Union Canal that runs close to his home in the Chilterns. He meets those who live and work on the water and gets to grips with an engineering marvel that keeps the system flowing. Tom Heap investigates how farmers are adjusting to climate change, and with the help of Cerys Matthews and Simon King, John Craven launches this year’s Countryfile photo competition.