Update by the author on 28/06/2025: point (9) has been renamed (this location was not previously identified on site).
Parking spaces available in the centre of Matefelon-Granges
(S/E) With your back to the car park, join Rue de Thoire and turn right towards the church.
(1) After the church, leave the road and take a wide path on the right, heading downhill towards Coiselet (some nice views towards the Col de la Bréchette and the Ain Valley).
(2) At the buildings (Centre de Vacances le Ruisseau), follow a path on the right uphill (still towards Coiselet). The route is mainly through the woods, with a first section that is fairly steep, followed by a second section that is downhill. Join the RD936 road.
(3) Continue carefully along the right-hand side for about 400 metres, then take a small road on the right leading to the hamlet of Coiselet (its castle is clearly visible opposite).
(4) Continue right on Chemin de la Poyat (towards Barrage de Charmine), follow the yellow markings, ignoring the other directions, until you reach a clearly visible fork.
(5) Continue along a path on the left downhill and you will arrive at the Fontaine Noire (a curiosity corresponding to a resurgence).
(6) Continue along the path uphill.
(7) At a fork, continue left for a few metres to reach a beautiful viewpoint overlooking the river (be careful of the cliff). Follow a path downhill: from the edge of the riverbed, you can admire magnificent potholes. Be careful in this area! The water level can change rapidly at any time due to the presence of a dam upstream (exercise caution).
Retrace your steps back to the fork.
(7) Continue straight ahead. Shortly afterwards, the path disappears as it crosses a large meadow: look for a signpost a little further up, then continue along the small road to the D18.
(8) Follow this road to the right and cross it with caution, then quickly take a path on the left. After reaching a meadow, you will walk through a wooded area slightly above the lake.
(9) At the Camping des Gorges de l'Oignin car park, take the path on the right uphill to return to the car park (S/E).
