K3/10N : Shuckburgh/Southam

Start on A425 at gully 10 yards west of Phone box in lay-by at bottom of Shuckburgh hill.
Ride west through Napton on the Hill to the Southam by-pass island
Turn left along A423 to next island at junction with A425
Encircle island (third exit) and retrace along A423 to island at junction with A425
Take third exit along A425 and retrace to Lower Shuckburgh to finish by warning sign "Old People" on A425