The car park is on the left at the entrance to the central lane leading to Pont-Sal Castle.
(See note in practical information).
(S/E) Take the wide path that extends from the car park. This is the Pont-Sal wood botanical trail. The hike can be extended at the start or end by taking this route, which adds about 4 km.
(1) Leave the botanical trail that veers to the right and continue straight ahead.
(2) Take the wide path on the left that heads towards the main road. It ends in a trail that leads to the D765. Cross this departmental road with caution to take a passage under the N165.
(3) Immediately after the underpass, the path on the right joins the Sal River. A large wooden deck with guardrails allows you to cross a marshy area that is covered at high tide. The hike now follows the Sal estuary, or aber in Breton, without any confusion, passing successively by:
(4) The imposing Pont-Sal mill (see photos and link under "Les moulins de la mer" [Sea Mills]).
(5) The Anse de Lann Vihan (small moor in Breton). The trail follows the road towards Plougoumelen for about 40 metres before crossing to the other side of the cove and passing through a reed bed used for making thatched roofs, particularly those of Cahire, a village classified as a picturesque site in Morbihan, which we will come across further on.
(6) The small Port du Tron, a pleasant spot for picnics. The Sal River now takes the name Rivière du Bono.
(7) The remarkable Kervilio Mill (see photo and link on "Les moulins de la mer" [Sea Mills]). Just before crossing the bridge that precedes the Kervilio Mill, at a place called Kerblei, a path on the left leads to the Notre-Dame-de Béquerel Chapel, running alongside the Kervilio Pond. Since late 2020, a new path has been created on the other side of the pond, opposite the mill and initially running alongside the D 101E. It leads more directly and without confusion to the Notre-Dame-de-Béquerel chapel.
(8) Turn right onto the road linking Plougoumelen to Le Bono and continue for about 100 metres. The Notre-Dame de Becquerel chapel is signposted on the right (don't be misled by the sign for Chapelle Becquerel 2km; it is actually 200m away and well worth a visit). Then retrace your steps to return to the centre of Plougoumelen, less than 1km away, following Rue Notre-Dame de Béquerel
(9). After passing the church in Plougoumelen, take Rue des Chaumières on the right, then turn left onto the path that passes in front of the war memorial and runs alongside the cemetery. The path crosses a field and enters a shaded area.
(10) Take the fork to the left to reach the hamlet of Le Bot (the fork to the right is a path that would allow you to visit the thatched cottages of the village of Cahire on a 1 km round trip). After passing the first houses in the hamlet, take the fork to the left. The wooden boardwalk allows you to cross a section that is a little muddy in winter. At the end of the path, take the road on the left. After about 100 metres, follow the road on the right which leads to the village of Lérion for another 100 metres.
(11) Take the path on the left which joins the D101E (the entrance to the path is somewhat indistinct from the entrance to a property). Cross this departmental road (be careful, it is quite busy) and take the dead-end road towards La Nouvelle Métairie for another hundred metres. A path on the left leads to the village of Bochocho. After passing through the village, the road on the right takes you back to the original crossroads.
(3) Follow the outward route in reverse to return to the car park (S/E).