start on north side of arkendale road, at western edge of drain cover just west of crash barrier on bridge over a1(m). proceed east, and turn left onto a168. (0.10mls). continue north on a168 to boroughbridge south ti. (2.38mls).encircle island and proceed south on a168 to walshford ti. (9.91mls). encircle island and retrace north to finish at southern gatepost of entrance to field (disused), approx. 50 yds south of large green road sign indicating junction with arkendale road (15.00mls).