Start on the A18 at north end of lay-by approximately 1/2 mile north of Hatfield Green Tree Public House at point marked '25'. Proceed to Tudworth TI (0.4) - take 2nd exit on A18 to Crowle TI (6.6) - Encircle island (give way to traffic from left) and retrace to Tudworth TI (13.0) - Left on A18 to Green Tree Public House (13.9) - Left on A614 to Blaxton TI (20.1) - Encircle island and retrace northwards on A614 towards Hatfield Woodhouse to finish just past 1st lamp post approximately 100 yards after Hatfield Woodhouse (25.0)