The walk starts in the village of Lauzet. Park in the car park on Place de la Mairie, behind the church.
(S/E) Leave the car park by going up Rue du Pied du Village in the opposite direction to the village square, which you will leave behind you. Follow this street to leave the village in the direction of the cemetery, which you will reach in the same direction (west) after passing a stable on your right. As you pass, take a look at the encouraging motto inscribed on the pediment of the cemetery gate.
Continue along this road. At the crossroads, turn right and join the old railway line (which has never seen a train) that runs alongside the road on the left.
(1) Take the left-hand track (signposted "tunnels"), which is well shaded, along the impressive railway walls. When you reach a wider clearing, leave the track (at the dead-end sign; do not go as far as the tunnel that you can see) and go down to your left to pass through a small tunnel under the track, which will take you back to the road you left earlier. This road will naturally lead you to the bridge that crosses the Ubaye at a place called Le Moulin. Follow this road, which passes between the two mill houses (recognisable by their millstones).
(2) Just above the tall house, take the path that leaves the tarmac road on the left. This path joins the road further up. Follow it uphill to the left until you reach a ford just below the waterfalls.
(3) From the ford, walk up along the stream to see the falls, which can be tricky with children. The path sometimes passes very close to the falls. A lovely spot for a picnic! Continue climbing up the right bank of the waterfalls to reach the road leading from Costeplane to Champcontier. Walk through old abandoned meadows (abandoned for farming due to the slope) to reach the tarmac road above.
(4) Turn right onto the road that descends towards the hamlet of Costeplane.
(5) At the entrance to the hamlet, the path passes under the houses. Go around the small shed on the right as you enter the hamlet, cross a wooden terrace and go down the steps to rejoin the path. The terrace is built on the communal path, so don't hesitate, you are definitely on the communal path! Walk along the village, passing the old school on your left, then the wash house and the chapel. Join the road further down which descends to the medieval bridge known as the "Roman bridge".
(6) Cross the Ubaye canyon via the Roman bridge and head back up towards the village via the path on your right.
(7) Return to the village entrance and head back to the car park via Rue d'en Haut on the left, crossing via one of the three cobbled alleyways. Return to the street you started on to get back to the starting point (S/E).
