A guidebook to walking Offa's Dyke Path National Trail, following Britain's longest ancient monument: the eighth century earthwork that once marked the boundary between the Anglo-Saxon kingdom of Mercia and the Welsh kingdoms to the east. The 285km (177 mile) route from Sedbury Cliffs near Chepstow to Prestatyn is suitable for walkers of most abilities. The route is described from south to north in 12 stages of between 17 and 29km (11-18 miles), with additional suggestions for faster and slower itineraries. Contains step-by-step description of the route alongside 1:100,000 maps Includes a separate trail map containing OS 1:25,000 mapping with the route line Public transport information for those wanting to break the trail into shorter sections Handy trek planner, route summary table and accommodation listings help you plan your itinerary GPX files available to download