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Most walkers travel south to north, starting by the Severn, at Sedbury , near Chepstow, and finishing at Prestatyn.
The route crosses the Black Mountains, the Shropshire hills (including the many ups and downs of the 'Switchback', for many walkers the hardest part of the walk) the Eglwyseg mountains, and the Clwydian Hills.
It passes through, or close to, the towns of Monmouth, Hay-on-Wye, Kington, Knighton, Montgomery and Llangollen.
The half-way point of the walk is marked by the Offa's Dyke Centre in Knighton.