Julia Bradbury follows in the footsteps of legendary guidebook writer Alfred Wainwright by walking across the whole of northern England from the west to the east coast. This was Wainwright's last great venture and has become his greatest legacy - a beautifully simple proposition, linking three national parks that lie between the Irish and the North Sea. 36 years after its creation, Julia is off through sunshine, wind and rain to cross the changing landscape, understand the history and meet the people that make up almost 200 miles of northern England. The fourth stage of Julia's journey is entirely devoted to one great valley, Swaledale in Yorkshire. Wainwright studied this 22-mile section in utmost detail, presenting a varied route of valley bottom and windswept moor top. The villages, landscape and the history are a delight, just as Wainwright predicted, with Julia learning much about the lost mining industry that was once the lifeblood of Swaledale.