From M25 exit J17 and take A412 towards Maple Cross and Denham. Straight across traffic lights by "The Cross PH", continue to first mini roundabout, turn left then immediately right and left again by "The Oaks PH". Continue through traffic lights over canal bridge and up the hill into Harefield village. At mini roundabout by village green go straight across into Breakspear Road North. The ground is 200 yds on the right side almost opposite junction with Northwood Road.