Portskewett and the bridges

Coastal Walk that is relatively flat and loops inland near Portskewett. There will be views of both Severn crossings. Starting off near Black Rock we walk along the coast towards the Severn road bridge. Then we head inland via Portskewett and Caldicot following the railway line in a few places. After heading over a bridge over the M4 near the toll booths we re-join the coast. The walk will also pass through Subrook where the Severn rail tunnel makes landfall.  Depending on the weather there could be some muddy areas so if you have walking booths please bring them. Otherwise trainers are ok if you don't mind them getting dirty and wet feet. There is the possibly of a pub at the end and the walk can be shortened depending on the group and weather.