Wye Valley Wye Valley The Wye Valley Area of Outstanding Natural Beauty (AONB; ) is an internationally important protected landscape straddling the border between England and Wales. It is one of the most dramatic and scenic landscapes in Britain. The River Wye () is the fifth-longest river in the United Kingdom. The upper part passes through Rhayader, Builth Wells and Hay-on-Wye, but the area designated as an AONB covers surrounding a stretch lower down the river, from just south of Hereford to Chepstow. This area covers parts of the counties of Gloucestershire, Herefordshire and Monmouthshire, and is recognised in particular for its
Wye Valley Walk Hafren, having passed within viewing distance of the source of the River Wye on Plynlimon near Aberystwyth, a total of . The Wye Valley Walk is marked out by circular yellow waymark arrows, finger posts, and signs showing the path's logo, a leaping salmon. Most of the route follows Public Rights of Way. Some parts are permissive paths where owners have agreed for them to be used. Parts of Plynlimon are open countryside in which there is a right to roam established by the Countryside and Rights of Way Act 2000. The route passes through Chepstow, the Wye Valley AONB,