Drive from La Toupine towards Sisteron, taking the D951 which crosses the Sasse torrent just outside Valernes. Before reaching the river bridge in Sisteron, take the D3 road on the east of the town, following the signs for the village of Authon. As you drive up behind the Gache, you will see a sign 'Pierre Ecrite' on your left, pointing out a Roman inscription engraved into the rock. After another kilometer or so on this road you will find a large boulder on the left. Park near the next forest track you reach on your right.

 

Follow the track as it climbs and meanders towards the south-west. Eventually you will reach an electricity pylon which marks the southern edge of the crete.

 

If you wish to extend the walk, continue towards the east by following a sketchy path which runs along the edge of the crete. It is possible to continue the walk all around the edge of the crete to its north-east corner, although the going at times will be difficult. A scramble down the hillside towards the house Chardavon will get you back to the main road. Alternatively, retrace your steps back to the pylon and follow the forest track as it continues downhill towards the north-east.