Thonac lies on the Les Eyzies–Montignac D706 road. The route starts from the signpost in the car park opposite the Thonac village hall.
(S/E) Turn left towards “Le Colombier”. Continue along this road for about 1 km until you reach a five-way junction, where you’ll find the Route du Moulin and a cross.
(1) Turn left. On leaving the hamlet of Saint-Chabran, at the junction, turn right onto the Route de la Rosière for 50 metres.
(2) Turn left again onto theGR®36until you reach a junction with a tarmac road, near the leaning tower of La Vermondie.
(3) Cross the road to enter the woodland opposite and follow the path until you reach the junction with another road. Turn right onto the forest track for 50 m, then left onto the Route des Crêtes until the next junction with the path leading to the hamlet of Engout.
(4) Turn right towards the hamlet, then take the path on the right. Continue along this path, passing the hamlet of La Fouillouse. Join the tarmac road and follow it on the left for about 150 metres until you reach the first junction.
(5) Turn right, join the Route de Fongran and walk alongside the eponymous ponds. Continue along the road at the end of the ponds until you reach a bend.
(6) Take the small path on the left running parallel to the stream Le Thonac. Follow this path to the hamlet of Pré du Pont at the second junction. Join the road and turn right onto it. Cross the Thonac and continue to the crossroad.
(7) Turn left and follow the Route de Jacquou before turning right onto the Route de la Côte de la Tustedie. Continue along this road until you reach the first junction.
(8) Turn right towards the hamlet of Grigne and carry on straight along the path until you reach the Impasse de la Borie, then the Route de Jacquou at its end.
(9) Turn left onto this road and return to the original junction.
(1) Carry on straight ahead until you rejoin the starting route (S/E) via the Allée des Platanes.