Park in the Maison Forestière car park in Wallers.
(S/E) Reach the end of the famous Arenberg cobblestones (Paris-Roubaix cycle race) and take to the road.
(1) Go straight on, following the yellow marker.
(2) At the barrier before the car park, turn left and continue to a new car park.
(3) Pass between the white and green barriers to climb the slag heap.
(4) At the top of the slag heap, enjoy the view of Mare à Goriaux and the surrounding area. Then climb back down to the left, going along the Mare à Goriaux.
(5) At the A23 motorway junction, turn left to the Drève de Bassy crossroads.
(6) Turn right towards the Maison Forestière de Bassy.
(7) At the Maison Forestière, turn left and left again to Drève de Grand Bray, then right to the crossroads ahead.
(8) Turn left into Drève du Réthot and rejoin the outward fork at the cobblestones.
(1) Turn right to return to the starting point (S/E).

