start: under west end of motorway bridge 50 yards east of sinderby/kirklington ti(b6267). proceed forward to bear left at ti and continue southwards to reach baldersby ti(3.34 miles). encircle island and proceed northwards via sinderby, gatenby and leeming bar ti's to reach the large ti at the northern end of the a1m(13.58m). encircle ti with care and proceed via leeming bar, gatenby and sinderby ti's(passing the start) to reach baldersby ti(23.90m). encircle island and proceed northwards to finish at north end of crash barrier approx. 200 yards north of the derelict farmhouse, and 300 yards south of the middleton quernhow lane and(25m)