Cicerone Offa's Dyke Path MapDescribes the route from south to north between Sedbury and Prestatyn on the north Wales Coast The guidebook comes with a separate map booklet of 1: 25,000 scale Guidebook and Ordnance Survey map booklet to walking Offa's Dyke Path National Trail, a 177 mile (283km) long distance walk along the English Welsh border between Sedbury (near Chepstow) and Prestatyn. The walk is astonishingly varied, taking in the lower Wye gorge, the Severn and the Dee