Start on A15 at 2nd road gulley south of metal farm gate opposite Willoughby Road on A15 approximately 1.2 miles south of Quarrington Roundabout. Proceed south on A15 through Osbournby village to A15/A52 roundabout (4.38m). Take 3rd exit onto A52 towards Grantham to turn at Spitalgate roundabout (B1176/B6403) 3 miles east of Grantham (12.86m). Encircle roundabout to retrace route along A52 to A15 roundabout (21.33m). Take 1st exit onto A15 towards Sleaford passing through Osbournby to finish at field entrance approximately 75 yards before Blue sign reading Sleaford 7.5 tonnes weight restriction, near the southern end of the layby on the opposite side of the road, 0.36 miles south of Silk Willoughby junction (25.05m).