Start 10 metres to the west of a road gully grating situated at the eastern end of the layby  [51.23726, 0.72817] on the eastbound A20 below the chalk cross memorial on the North Downs above the Lenham bypass. Proceed to Orchard Heights roundabout (8 mls) [51.16137, 0.85534] to turn and retrace to Charing roundabout (12.8 mls) [51.21309, 0.78999] where turn back towards Orchard Heights roundabout (17.6 mls) where turn and retrace to Charing roundabout (22.37 mls) where taking the 1st exit continue along the A20 to finish at a point 266 metres before the junction with Hubbards Hill [51.23437, 0.73873], opposite field entrance on the north side of the carriageway.