There are twelve steam railway walks in total; these follow: The Severn Valley Railway in Worcestershire and Shropshire; the Nene Valley Railway, Peterborough; the Gloucestershire-Warwickshire Railway; the West Somerset Railway; the Watercress Line in Hampshire; the Spar Valley Railway in Kent and East Sussex; the Kent and East Sussex Railway;the Romney, Hythe and Dymchurch Railway in Kent. The walks vary in length from 2.5 to 5.5 miles.