Dortan walks

Starting from the workers' village of Dortan, this walk takes you through the Bois de Chatelard forest to the Pierre-qui-Vire and its rocky promontory overlooking Lac de Coiselet. Then, in the intimacy of a rocky cirque at the end of a shady valley, you will discover the waterfall of the Ruisseau de Maissiat, which has been building a pyramid of tufa for thousands of years.

The aim of the hike is to complete a circular route overlooking the village of Dortan and Lake Coiselet. There are many beautiful viewpoints along the way.

I suggest a route that is almost a loop, with some beautiful views, to reach the Pic d'Oliferne from Lac de Coiselet (Condes). There are no major difficulties to encounter. At most, there are a few passages that require caution if the ground is slippery (see below).

I suggest a short hike (about 1 hour) from Chancia to the small summit of Molard de Netru (491 m). There are some beautiful views to discover.

From Chancia, I suggest you return to Montcusel via a pretty loop trail: first, you follow the Bienne River at a distance, then you climb a few hills with beautiful views, especially towards Lac de Coiselet.

Interesting viewpoint offering views of the Ain valley (Vouglans Dam, the Haut Jura mountain range and Mont Blanc in good weather). The ruins of Oliferne Castle are now of considerable interest following restoration work carried out by volunteers.

Discover Oliferne Castle via the ridge paths. Forget the wide, uninteresting track and enjoy the pleasant paths and panoramic views, where it is practically impossible to go wrong if you follow the yellow markings. Please note: some areas require extra attention when walking with children.

Il est proposé un parcours en boucle un peu sportif, dont la finalité est de rejoindre à partir d'Oyonnax la Prairie d'Echallon, puis de revenir via le Lac Sous les Mousses (et à proximité du lac de Viry) puis le Mont de la Chaux et la Pointe de Biez.

The aim of this hike is to take you to Lac Genin from the centre of Oyonnax. The route is mainly a loop. Once you arrive at the lake, you are free to spend as much time there as you like.

This moderately difficult hike will allow you to discover unspoilt nature and a unique panorama from the Cuchet viewpoint. In autumn, the colours are sublime...

Walk in the forest with a view of Lake Antre and the Jura Mountains

From Matefelon-Granges, I suggest you take a 11 km circular trail through the Ain Valley, then the Oignin Valley. Along the way, you will enjoy views of Thoire, the Château de Coiselet (private), the Saut de l'Oignin waterfall and its potholes, and finally the lake upstream.

An easy hike around Villards-d'Héria with superb views of Lake Antre, the town of Moirans-en-Montagne and Lake Vouglans.Please note that access is currently prohibited: following a landslide, access to the Lac d'Antre viewpoint is prohibited until further notice. From point (2), go directly to point (4). Please note: there has been a forest fire between points (4) and (7) since 17/08/2025 at 7 p.m. Do not attempt this route

In a typical Jura setting, this loop offers exceptional panoramic views, such as the Roche Fauconnière.

This easy hike is best enjoyed in spring and autumn if you want to make the most of the second part, which is also the most beautiful: the waterfall and stream. It's guaranteed to be cool in summer, even with just a trickle of water. Amazon rainforest atmosphere before the waterfall. Moderator update on 24/09/2020: Please note! Change of route at the end of the trail, after the waterfall. To return to the car park, follow the diversion and the yellow markings.

The route follows the course of the Oignin river on the edge of the Gorges de l'Enfer, then goes around the Lac de l'Oignin, all with some pretty nice scenery!