Coming from the Brest–Quimper motorway, at the Ar Pouilhod roundabout, head towards Châteaulin, taking the D887 down towards the town centre. At a fork in the road further down, turn right towards Crozon (no lorries allowed) and you’ll reach the car park at the old railway station near the École Marie Curie on Rue Raoul Anthony.
Yellow PR® signposts
(S/E) With your back to the old station building, take the path that runs alongside a playground with picnic tables and a sports area. Follow this long path. Pass the old grandstands of the Aulne cycle route on your left (metal safety barriers). Follow this long, straight, tree-lined path overlooking the river. This is the former route of the Châteaulin–Carhaix railway line, which operated until the 1970s. Continue along a dirt track.
Join a small road at a residential property (with a chain blocking vehicle access) and walk through this group of houses.
No signposting
(1) At the signpost, near a basketball court, leave thePR®® by turning left onto the D48A, which you follow for a few dozen metres. Turn left into the first one-way street leading down towards the church. Cross the square in front of the church, with its fountain, and head down towards the River Aulne near the war memorial.
(2) Turn left and follow the towpath alongside Avenue Louise Bobet, which was the long, straight finish line of the famous Aulne route, where the greatest cycling champions of all eras competed between 1935 and 1998. Note the old grandstands on your left. Pass under the old railway bridge.
(3) Head down to the right via a flight of steps towards the lock, where a fish pass has been built into the riverbed, allowing you to see, through large glass panels, the salmon and other fish swimming upstream along the Aulne (self-guided visit).
Yellow PR® signposts
Head to the bridge, cross the Aulne and then turn right onto Quai Cosmao. Cross at the pedestrian crossing towards Rue Garrec.
(4) Head up this dead-end street on the left, which runs alongside the rear of the old Moulin Du Roy (now disused) and continues as a narrow alleyway. You’ll come to a sign indicating the way to a viewpoint.
(5) Turn left to climb up to the first viewpoint, which overlooks the whole of Châteaulin. A second viewpoint is situated about fifty metres further up (take care at both these sites).
(6) Retrace your steps down to the narrow lane and continue left along the street to reach the Notre-Dame Chapel, built on the hillside on the north-western face of a hillock which had been a fortified position since the 10th century. View over the town. The stone house near the church was the former presbytery.
(7) After exploring this chapel and its lovely viewpoint, head down Rue Notre-Dame to reach a roundabout. Take the path to the right of the roundabout to cross a beautiful modern footbridge over the River Aulne.
(8) Turn right onto the quay, then continue along the towpath, passing the campsite. Note the royal osmunds by the riverbank. You’ll soon come within sight of the Coatigrac’h Lock.
No signposting
(9) Turn left at the gable end of a dairy, take the path at the entrance to the brand-new community swimming pool “Les Bassins de l’Aulne” and walk up the street along the left-hand pavement
(10) Turn right into the first street, Rue de la Piscine, then keep left and continue, still keeping left, along Rue du Lycée. Walk past the Jean Moulin Secondary School and Sixth Form College.
(11) Turn right onto Place du Champ de Foire (currently a car park), cross it and head up Grand Rue to the right for about ten metres until you reach the first pedestrian crossing.
(12) Cross the road and take a narrow passage between the houses to reach the Venelle de Kerstrat. Follow it to the right, then continue to the right along a street to return to the starting car park (S/E).