A planning application has been made by Greenways and Cycleroutes Ltd, in conjunction with Wyedean School and the National Diving & Activity Centre, to extend the Wye Valley Greenway from Bishton Lane, Tidenham, to Wyedean School, Sedbury, just across the River Wye (and Anglo-Welsh border) from Chepstow. Importantly, this would include the old railway bridge on the Wye Valley branch that crosses the busy A48. Wyedean School is cut off from the Wye Valley by the A48 and is actively participating in the development of the path, even providing the land to complete the route. At its northern end, the path connects with the section to Tintern, making a 5-mile trail in total. The pièce de résistance is the 1188-yard Tidenham Tunnel, now open in hours of daylight from April to September to walkers and cyclists(closed the rest of the year due to a resident bat colony). This makes it the second longest tunnel open for leisure use in the country. (Greenways and Cycleroutes Ltd.)