Countryfile

Matt Baker and Sammi Kinghorn explore Bannau Brycheiniog National Park

Matt Baker and Sammi Kinghorn are in Bannau Brycheiniog National Park, where the power of water that runs through its valleys shapes the landscape both above and below ground. Matt joins a local caving team, while Sammi visits a 200-year-old mill still driven by the force of the water. Plus, Adam Henson is in Lincolnshire, where a farmer is taking a gamble on growing olives