Three easy circuits (white, yellow and orange) make this a popular family venue. There's also a very good blue and red circuit and some off circuit routes.
Head South on the D64 from Arbonne La Foret and after 2km the road takes a sharpe bend to the left. Take a right turn in about 200m under the A6 motorway. Parking is just around the corner. Follow the broad track from the car park for 150m until you come to an open sandy area. The boulders can be seen in amongst the trees over to the right.