Parking is available at the church and town hall car park in Le Plessis-Grimoult, Place des Grimoultais.
(S/E) With your back to the church and town hall on your right, cross Place des Grimoultais, then cross the street very carefully and turn left. Follow Rue du Mont-Pinçon (D54) for about 50 metres, then turn right towards Thury-Harcourt and Campandré-Valcongrain (D108). Take Rue de la Foire Saint-Clément. Follow this road, use the right-hand side lane at the village hall, then on leaving the village continue carefully for about 900 metres until you reach the top of the hill.
(1) At the top, at the crossroads of the road and the paths (point 298), turn left and follow the path for about 200 metres. Optionally, you can discover the geological and archaeological site of "La Bourbe Noire" on your right, where a picnic table awaits hikers. Continue for about 100 metres to the crossroads (point 322) and take the small path on the left, ignoring the signposts. Walk along the hedge on the left and the field on the right. Pass below the old Roman camp (the remains are covered with ferns) and turn left at the edge of the woods. Continue downhill until you reach the next intersection (point 311).
(2) Turn right and walk uphill for about 450 m until you reach the car park between the Mont-Pinçon road (D54) and the TDF site (pylons and antennas).
(3) Cross the D54 road with great care and follow a wide ridge path (Chemin Fête) for about 1.5 km. Along the way, note that on the left, after about 500 m and near an antenna surrounded by a wire fence, there is an orientation table that originally offered a vast panorama, but since vegetation has grown up, the view has lost its splendour. Continue to the next intersection (point 344).
(4) Turn left, taking theGR® Tour de la Suisse Normande, and continue to the 13th/18th Royal Hussars memorial. There is a picnic table for hikers near the memorial.
(5) Retrace your steps to find theGR® on the right, walk for about 400 m and turn into the first path on the right. Follow the path for about 250 m and continue on theGR® by turning left.
(6) Walk for about 1 km until you reach the Mont-Pinçon road (D54).
(7) Turn right before the road, walk for about 200 metres and then cross the Chemin d'Harcourt. Continue straight ahead for about 100 metres, cross the Rue du 7 Août 1944 (D165) and follow a small path for about 100 metres.
(8) At the intersection, turn left, then at the next fork, continue straight ahead towards the village. Take Rue Grimoult du Plessis (you will pass in front of the old fortification of the Baron de Grimoult du Plessis estate) and you will come out in front of the Parish Church of Saint-Étienne. Turn left to return to Place des Grimoultais and the car park (S/E).