The actor journeys along the waterways of East Anglia, where he experiences a traditional way of living that survives in the man-made ditches of the Fens. He also revisits the romantic sailing boats of his childhood on the Norfolk Broads, before travelling along the Stour. Finally, he examines how the conflicting interests of farmers, anglers, canoeists, naturalists and industries can be reconciled to ensure the future of the nation's rivers

• Griff Rhys Jones