Joe Crowley travels the length of Caledonian Canal, starting from high above Fort William on Aonach Mor Mountain. He sails through Neptune's Staircase, a ladder of eight locks, goes waterskiing on Loch Ness and finally arrives at the Moray Firth, where the canal runs into the North Sea – the perfect place for dolphin spotting.

Matt Baker and Jules Hudson are on Dartmoor, where Matt is training with Devon's Cave Rescue team, and Jules is getting up-close to rutting stags. On Adam's farm, it is time to introduce a neighbour's Belted Galloway bull to his cows in order to ensure a new blood line for the future, and, in the aftermath of the e-coli outbreaks in petting zoos and farms, John Craven investigates whether it is getting harder to teach children about where their food comes from. 

 

Martin Hughes-Games chairs this post-show, audience-led informal live discussion and debate with the presenters. 

 

Tales from the Green Valley
Tuesday – 7.30pm – BBC Four
Five experts - archaeologists and historians - have taken on the challenge of running a Welsh hill farm for a year. It's March, and the farmers are busy turning their wheat into bread flour.

Thursday – 7.30pm – ITV1
Paul Heiney tastes ancient fruits such as medlar and quince on a visit to a centuries-old Essex farm and jam factory. Plus a look at the West Somerset Steam Railway, and an organic farming pioneer from Wiltshire.