Follow the River Severn from its source at Plynlimon in Powys, to Bristol, the mouth of the river. You start the walk at Plynlimon in upland Mid Wales, before descending into Llanidloes, Newtown, Powys, and Welshpool. The route then follows the towpath of the Montgomeryshire Canal passing The Wrekin and continuing on through Shrewsbury, the Severn Gorge, and the historic town of Ironbridge. You then cross into Worcestershire passing Bewdley, Stourport-on-Severn, Worcester and Upton-upon-Severn in the Malvern Hills. The next section passes through Gloucestershire, visiting Tewkesbury, Gloucester, Berkeley Castle and on to the Severn Estuary and the mouth of the Severn. The final section takes you from Severn beach to Bristol via Lawrence Weston, Shirehampton and through the Avon Gorge.
The route is well waymarked with a blue and white logo.