Guide to walking the 135 mile Glyndwr's Way National Trail through mid-Wales, from Knighton to Welshpool, following in the footsteps of medieval Prince of Wales Owain Glyndwr, taking in quiet hills, forests and rolling countryside. 9 stages, plus 2 additional stages following Offa's Dyke Path to close the loop and an optional ascent of Pumlumon FawrStages range from 18km to 29km (11–18 miles).