GPB presents a special tour of London, the Peak District and the Yorkshire Dales for our most passionate viewers and supporters. You’ll "step inside the screen" as you explore the quiet town of Grantchester, the bustling streets of the Historic Chatham Dockyard as seen in Call the Midwife and the green farmlands dotted with sheep familiar from All Creatures Great and Small as well as James Herriot’s original vet practice, home and surgery.