Refine your search for walks in Oyonnax
The Pic d'Oliferne

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.
Around Oignin

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!
Molard de Netru from Chancia

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.
Semine Valley

A refreshing short hike with multiple panoramic views.
Petit tour de Granges à Heyriat

Je vous propose un petit parcours permettant de rejoindre Heyriat à partir de Granges situé pas très loin des bords de l'Ain.
Overview of Nantua

A panoramic walk overlooking the town of Nantua and its famous lake, in an exceptional environment that alternates between countryside and coniferous forest. The mountainous route retains a good sporting aspect.
From Saint-Maurice d'Echazeaux to Montdidier Castle

A pleasant, easy circular walk, mainly through woodland. The charming church of Saint-Maurice-d'Échazeaux (or des Chasaux), which overlooks the confluence of the Valouse and Ain rivers, and the ruins of Montdidier Castle are worth exploring.
Roche d'Au-Delà

A beautiful, moderately difficult hike with panoramic views overlooking Lake Nantua and the Autoroute des Titans.
At the summit, weather permitting, you can see Mont Blanc.
The Couloirs circuit starting from Les Bouchoux

A short hike from the village of Les Bouchoux, which allows you to gain some height to see the surrounding area and take a short detour to a superb waterfall.
Overhangs of the Ain Gorges: Bolozon - Balvay - Solomiat - Napt

This is a circular route from Bolozon, passing through pretty villages (Balvay, Solomiat and Napt) and overlooking the Gorges de l'Ain.
This is a "classic" route (often suggested in the opposite direction) that does not present any major difficulties.
Ferme du Crime - Lake Antre

Walk in the forest with a view of Lake Antre and the Jura Mountains
The Étrès waterfall from Forens

Here is an accessible and enjoyable walk, perfect for enjoying summer days in the shade of trees, to the rhythm of a refreshing stream. The trail passes through peaceful, green surroundings and leads you to the Cascade de l'Etrès waterfall, nestled discreetly in the landscape. A well-deserved refreshing break. A simple and rejuvenating outing in nature to share with your family.
The Crêt de Chalam

Short hike with magnificent views of Reculet, Crêt de la Neige and Mont Blanc (in clear weather).
Moderator's addition on 07/08/2021: Since this hike was created, the trail for the return seems to have deteriorated and some hikers have preferred to do the round trip. See reviews
The Jura Mountains via Le Gralet and Menthières from Chézery-Forens

Starting from Chézery-Forens, I propose a lovely route to the Monts Jura between Le Gralet and Menthières. On the whole, it's a relatively easy route in a wooded environment punctuated by a few open spots offering some fine views.
Col de Menthières, La Pelaz et le Chalet du Sac

Les alpages de Menthières et les paysages du chalet du Sac offrent de grands espaces pour une évasion au cœur des Monts Jura.
Entre forêt et alpages, ce parcours varié ouvert d'avril à novembre, s'ouvre sur de superbes panoramas. Le sentier débute depuis le parking face au télésiège du Rendu, longe le parc accrobranche avant de monter vers le Col de Menthières. Il passe par des lieux emblématiques servant de repères pour les randonneurs : la "Grange Velue" et le "Chalet du Sac", qui offrent des vues panoramiques sur Valserhône, le plateau de Retord et les Alpes. Les chiens, même tenus en laisse, sont interdits dans cet espace situé en Réserve Naturelle.
Crêt de la Goutte via Le Sac and Varambon

Tour of the chalets of the Col du Sac and Varambon via the Crêtes du Sorgia - 360° view at the Crêt de la Goutte with orientation table to discover the Monts d'Ain, Lake Geneva and its water jet, the start of the Jura mountain range, the Swiss and French Alps including the Matterhorn in good weather and the majestic Mont Blanc.
The Jarbonnet Rocks

After an initial wooded section, you will be rewarded with a beautiful view of the Ain river valley from the top of the Jarbonnet rocks. The river winds its way through the valley below. The summit is not very popular and is mainly known to climbers who enjoy the routes offered by the cliff.
Les Moussières - Lélex

The third and final stage of the 3-day, 2-night Crêts en combes hiking tour.
Starting from Lélex, this loop route combines the main GTJ route with the alternative route via Mijoux and the Col de la Faucille.
The crossing of the Hautes-Combes jurassiennes, the Valserine valley and the ridges of the Haute Chaine du Jura promise breathtaking landscapes. On one side, the view overlooks the ridges, on the other, it overlooks Lake Geneva and the Alps. In the heart of the Haut-Jura Regional Nature Park and partly in the Haute Chaîne Nature Reserve, the hike takes place in a preserved natural area.
The trail is marked with GR® (red and white) signs
La Quinquenouille and Dramelay

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.
From the Regardoir viewpoint to the Roche aux Corneilles viewpoint

The view from the lookout point is always impressive. Along this trail, you will overlook the beautiful landscapes of Lake Vouglans, observe its colourful surroundings and contemplate its wooded shores, remarkably preserved from unsightly urban development.
This route is also suitable for trail runners.
Crêtes du Mont Chabot à partir de Saint-Claude

Le Mont Chabot est une des montagnes-phare dominant la ville de Saint-Claude.Il s'agira d'accéder à sa crête en empruntant un parcours en boucle partielle permettant de visualiser de superbes points de vues sur la ville et les alentours. La randonnée est assez courte, mais attention certains passages sont relativement raides et peuvent s’avérer glissants.Attention : le parcours présenté en 2016 vient d'être partiellement remanié (lire § Infos pratiques).
Tour du Flumen via La Roche Blanche and Sur les Grès

This loop will allow you to discover the bottom of the Flumen valley (and its waterfalls) as well as the ridges above it.
Hautecourt Cave Loop

Short loop passing through the Hautecourt Cave Nature Reserve. Hike with no technical difficulty, alternating between woodland and open spaces. The climb up to the Mont Rosset plateau is a little steep, watch out for cows, but you'll be rewarded at the end. Please note that the cave itself is not open to visitors, even though it was France's first underground nature reserve in 1980. Don't be disappointed, though, as there are a dozen information panels on the surface explaining the cave's biodiversity and its exploration in the past. For those interested, there is a 3D tour on the LPO Aura website.
The water ridges

Plateau of the Jura mountain range, overlooking the valleys of Bellegarde sur Valserine and Fort l'écluse. The highest point of the Crêt de la Goutte offers a 360° panorama of the Jura Natural Park and Lake Geneva on the Geneva side, with a horizon dominated by the Alps, including Mont Blanc.
Fort l'écluse loop via the Belvédère de Léaz

Fort l'Ecluse, a fortified military structure dating from the 16th and 17th centuries.
Léaz viewpoint.
Panoramic view of the Rhône valley.
Tour of the Cerdon heights

The aim of the route is to complete a beautiful loop overlooking the Cerdon: after crossing the vineyards overlooking the valley, the route continues on the plateaus of Saint-Alban and Labalme before returning to the starting point via the Combe Cugnat and a slight detour via Mont Carmier.
Please note: access is currently blocked at the Pont de l'Enfer (11) and therefore indirectly from Labalme (8). An alternative route avoiding this area is suggested. See below.