The start and finish of this route is at the car park of the former tourist office on Rue Ty Parc in Gourin.
(S) With your back to the car park, turn left towards the north and turn left onto Rue de la Libération, towards the village. Pass the town hall on your right and continue along Rue Jacques Rodallec (D27) until you reach the church.
(1) Turn right onto Place de l'Église, then right onto Rue de la Vierge, and continue to No. 6.
(2) Immediately after, turn left (Rue Hugot Derville), then turn left again (Rue du Cimetière). Follow the cemetery wall, then continue straight ahead towards the village hall. In the left-hand bend, go straight ahead onto Rue du Bois Tronjoly, follow the car park and you will come to a fork.
(3) Turn right, then keep right at the fork that follows. Follow Allée du Château and, at the end, turn left onto Rue Hugot Derville. Cross the D27 and continue on Rue de la République until you reach the next intersection.
(4) Turn left onto Rue de Toul An Chy, then turn left at the next intersection onto Rue de Saint-Nicolas and continue to a three-way junction.
(5) Keep right and follow Rue de Saint-Nicolas until you reach the intersection with the D769. Go straight ahead and continue to the place called Saint-Nicolas with its chapel.
(6) Continue straight ahead, cross a stream, and reach thesecond fork.
(7) Keep left towards Kerdoupin and continue until you reach the junction with the D121. Go straight ahead towards the village of La Trinité-Langonnet and continue until you reach it.
(8) Turn right onto the D109, then immediately left towards Place du Vieux Marché. Continue straight ahead until you reach Rue de Porlosquet, turn left, then right, and you will soon reach the Fontaine de La Trinité.
(9) Turn around as soon as possible and return to Rue de Porlosquet. Turn left, right, then left to rejoin the D109.
(10) Go straight ahead onto Rue de Kermat and join the C49 municipal road at the place-named.
(11) Turn right, then left at the first intersection, and continue to the next one.
(12) Turn left, cross the D1, and continue straight ahead towards Kernon until you reach Restembleï Len. Cross the hamlet and take thefirst road on the right.
(13) Take this road and you will soon reach the Étang de Pontigou. Follow it on your right and follow the path to the end of the pond. Turn left and stay on the path until you reach a road.
(14) Continue left until you reach Rue de l'Ellé (D128).
(15) Opposite no. 9, turn right, then continue right onto the D121. Pass the church, then continue straight ahead on the D187, Rue des Milards, until you reach a multiple junction.
(16) Turn right towards Restangoasguen, then keep right at the three-way junction. Pass through the hamlet and continue straight ahead until you reach Quinquis.
(17) Turn left (D128) and quickly reach the access road to the Saint-Guénolé Chapel on the right.
(18) Turn right for a round trip to the Chapelle Saint-Guénolé, then turn around.
(18) On your return, continue right on the D128 until you reach a T-junction.
(19) Take the hairpin bend to the left onto the C202 towards Château Launay. Continue along this road, cross a road bridge, pass through Landzent d'en Bas, and arrive at a large crossroads with recycling bins on your right.
(20) Turn right onto Rue du Pré Jacques, note the pond on your left, and continue straight ahead to reach the car park of the former tourist office on Rue Ty Parc (S/E).