The suggested starting point is the car park of the restaurant "Le Chêne Creux", located on the D17 between Saint-Etienne-de-Montluc and Couëron.
(S/E) At the far end of the car park, on the level crossing side, cross the D17 and take the small road marked as a dead end at the Lila bus stop. Cross the hamlet of Le Chêne Creux to reach a road, then turn left.
(1) After about 500 metres, at the cross, follow the road to the right (towards ZAC Clair de Lune).
After 1 km, at the crossroads, continue straight ahead. A little further on, on the left, is the Moulin de Bel-Air.
(2). Continue for 300 metres, the road curves to the right, and shortly afterwards, theGR®3turns onto the path on the left. Take this path. Follow theGR®.
(3) Cross La Petite Juliennais. At the end of the hamlet, take the path that descends to the left (offthe GR®). At the bottom, follow the road to the right. After 400 metres, rejoin theGR®3on the right on the path that climbs alongside the houses to the Berliquet stream.
(4) It is usually necessary to walk through the woods above the stream for about 100 metres to cross it and continue on theGR® on the path that climbs uphill. After about 400 metres, at the crossroads, take the path on the right to reach the hamlet of La Roulerais and continue to the stop sign. Follow theGR®3on the left on this road for 300 metres.
(5) Just before the reservoir, theGR® trail branches off to the right. The hike includes a short 500-metre detour (plus return) along this path to reach the "La Grande Juliennais" pond and enjoy a beautiful view of the castle. This is optional.
(6) Return to the reservoir.
(5) Continue down the road to the roundabout. Continue straight ahead on Route de la Clunais, then after 50 metres, turn left onto the path between the farm buildings and continue along this path for about 1 kilometre until you reach the road. Turn right. At the stop sign, cross the road.
(7) Cross the level crossing and immediately take the path that runs alongside the railway line on the left. After about 600 metres, take the path on the right and follow it to the road. Follow the road to the right, then after 50 metres, at the fork, turn left to the hamlet of "La Guillaumière".
(8) Continue straight ahead towards "Les Ouches", then continue to the crossroads towards Le Carrefour.
(9) Follow this direction to the left.
(10) After about 1 km, you will see a beautiful old mansion (15th century) on your right, which is said to have been a hunting lodge for the abbots of Buzay.
Continue to the next crossroads.
(11) Turn left. Follow the winding road.
(12) At the give way sign, continue straight ahead until you reach the level crossing and then the car park (S/E).