Ancient oaks flash past the train windows. There are wide views across a medieval patchwork of farmland and rolling downs scattered with conical oast houses and tile-hung brick cottages. The railway line to Hastings runs straight through the High Weald, England’s fourth largest Area of Outstanding Natural Beauty. Unlike Cornwall or the Cotswolds, this pastoral landscape is sometimes overlooked. But it’s easy to reach by train and ideal walking country: picturesque timber-framed villages with cheerful pubs and cafes set among gentle wooded hills with a choice of footpaths.