Offa's Dyke - the border between England and Wales. 1,200 years old and 177 miles long. The most impressive monument of its kind in Europe, now a national walking trail with more ascent than Everest. The present-day peace and tranquillity of this beautiful, remote area belie its turbulent past. Follow the walk from sea to sea, past castles, battlegrounds and ancient churches, over mountains and alongside rivers. Discover the history of this fascinating, enchanting region and some of the personalities who ruled, fought, built, farmed, robbed, wrote, painted and campaigned here.