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The Countryfile team are in Cheshire, where John Craven looks into the history of silk in the area. It all started with farmers making buttons for extra cash, and developed into an industry supporting 70 mills along the rivers. Helen Skelton is also in the county, meeting renowned fantasy author Alan Garner OBE. Cheshire born and bred, Alan's work has been inspired by the landscapes of the county. Jules Hudson is at Beeston Castle . On a clear day the stunning ruin looks out across nine counties. Jules looks into the history of the fortress and hunts out some of the wildlife species who live there. John Craven is also be at Jodrell Bank Observatory, seeing how telescopes in farmers' fields are leading the way in the technology we take for granted. Four years ago, the government announced plans for a national path around the whole of the English coastline . Tom Heap investigates why less than 1% of this project has been completed, and travels to Wales to discover why their own coastal path has been such a success. Adam Henson is on the Mendip Hills in Somerset on a family dairy farm with a difference. They produce 14,000 tonnes of cheese a year, and it is all run on 100% green energy.