The Exe: Father and daughter Stanley and Rachel Johnson - who both grew up in the Exe valley - walk the first 12 miles of this beautiful river from Exmoor to Winsford.
River Deben: Miranda Krestovnikoff walks along the salt marshes, tidal lagoons and wooded groves of the River Deben in Suffolk as she travels from Sutton Hoo to Ramsholt Quay.
River Lea: Sean Fletcher puts on his hiking boots to walk the eight-mile route along the River Lea, take in the landmarks of an industrial past, and discover what its future holds.
The Nidd: Blind adventurer Amar Latif takes us along one of Yorkshire's most stunning river valleys as he abseils into a hidden gorge and meets some local llamas.