START in Launton Lane, off the A41, approximately 3 miles southeast of Bicester, at a point about 70 yards from the A41, some 30yards south of 'Give Way 100yards' sign, level with tree immediately before gated entrance. Proceed to junction with A41, where turn left and continue along A41, through Kingswood and Waddesdon (Warning: pedestrian controlled lights!) to:- TURN (11.2 miles) at the Aylesbury Vale Parkway station RAB. Retrace outward route through Waddesdon (Warning: pedestrian controlled lights!) and Kingswood, past the end of Launton Lane, to turn left onto the B4011 (towards Thame) to:- FINISH on the B4011, about 1.8 miles from junction with A41, at a point level with a farm gate on the right hand side and the northern fence of the MOD site on the left hand side. Police Area(s) Thames Valley