From Reading side of the A4 take the turn for "Thatcham station Crookham (Pipers way) then take a left at the roundabout (still signposted for the station). Go up the hill until Bury bank road - take a right to get to the Greenham entrance. For the Crookham entrance carry on passed this and takea sharp right just after a "Reduce speed now" sign. Park in the car park or a little further on infront of the entrance

Crookham entrance