Start at Place André Ferré in Tinténiac.
(S/E) Leave the car park via the north exit and cross Rue de la Libération with care. Continue straight ahead, veering slightly to the right, into Rue de la Corderie. After 50 metres, go straight on into Rue de Saint-Mirel. Continue to the end of the street, alongside the canal.
(1) Turn right along the canal and, turning left, cross the Pont de la Libération. After the bridge, turn immediately left onto Quai de la Donac. Pass the Musée de l’Outil et des Métiers. Continue along the canal to lock no. 34 at La Gromillais.
(2) Leave the canal by turning right onto the road to follow the shared footpath and cycle path. At the roundabout, carry on straight ahead along Rue de la Gromillais and take thefirst street on the right, Rue des Dames.
(3) Cross Rue de la Liberté and continue straight on along Rue du Courtil Jamet. Turn right as you leave the town. Head south towards La Saude Cochère.
(4) Before reaching the departmental road, turn left to follow it alongside, heading towards the radio mast, then continue along the track. Join the departmental road at the Pondichéry farm.
(5) Cross the D20 and follow the road leading to Longrais for 50 metres. Turn left after the farm (this track does not appear on IGN maps) and carry on until you reach a road.
(6) Turn right and walk alongside the Étang de Rolin (private). Ignore the path on the left and carry on straight ahead. Cross a road and continue straight on. You’ll reach a junction with the D795.
(7) Turn right and follow the right-hand verge of the D795 for 200 m. Take thefirst road on the right. Continue to the right towards Trignoux. Pass through the entire hamlet staying on the same road and, on leaving it, turn left and continue westwards.
(8) At the bend, carry on straight ahead along the path. At the crossroads, carry on straight ahead (this path does not appear on IGN maps) until you reach the road leading to Cohier. Turn right.
(9) Cut across the clump of trees, turning left to join the Route du Mesnil. Follow it to the left. Pass under the high-voltage power line and walk past the houses of Glehec on your right.
(10) After the right-hand bend, take the path on the left which leads into Tinténiac onto Rue du Clos de Justice. Turn left onto the protected pavement. Continue left along Rue du Pont à l’Abbesse and cross the bridge again. Below on the left is lock no. 33 at Pont à l’Abbesse.
(11) Turn left just after the bridge and stay on Rue de l’Écotay as it moves away from the canal. At the end of the street, turn right onto Rue du Four à Ban, then left onto Rue du Prieuré, which runs alongside the church. Keep left at the roundabout, then turn right onto Rue du Bas Champ.
(12) At the roundabout by the cemetery, turn right onto Rue Rafred, then right again onto Rue du Puits Frin. Continue left onto Rue Nationale, then finally turn right to reach the car park (S/E).