Fêche-l'Église walks

This short hike will take you to the Roman Theatre and the Mathay plain via a path with views over the Doubs and all the biodiversity associated with this coastline: dry and wet forests, cliffs, scree and ponds are home to many protected species. Play areas, picnic areas and facilities are dotted along the route.

During this third stage, you will cross the historic town of Porrentruy. As you leave the town, the path runs along the edge of the woods before starting the climb to the Chalet des Chainions (Chalet des Amis de la Nature). The route then continues along a ridge before descending towards the hamlet of Seleute. As you approach Saint-Ursanne, you can admire the Clos du Doubs and its rocky massifs. You will enter the historic town of Saint-Ursanne through the Porte Saint-Paul.

From the castle ruins, you will climb up to the ledges where, like tightrope walkers from one border marker to the next, you will walk along the ridge line, neither in France nor in Switzerland. You will reach the Réclère Caves, considered the most beautiful in the world by the first explorers in 1886. From Journey to the Centre of the Earth by Jules Verne to Conan Doyle's The Lost World, you will squeeze between dinosaur feet. The return journey, via the old farmhouse at Montavon, will be less adventurous.

Kilometre Zero is the starting point of the front line established during theFirst World War. It is located on the current French-Swiss border, at a place called Le Largin. The Kilometre Zero trail explores three sections of the front line, the first kilometres of the French and German fronts, and the Swiss front at Le Largin, established along the border opposite the no man's land where boundary marker No. 111, considered the zero point of the Great War front line, is located.

Speaking of this part of the Sundgau, André Gide wrote:"One is constantly surprised, as one crosses the forest, to find oneself in the presence of an unsuspected sheet of water, mysteriously asleep in the shelter of the beech forests; rushes adorn narrow sandy beaches at the edge of large fields of water lilies. There are also several reminders of the First World War and the front line that separated Largitzen from Bisel.

The landscapes you pass through here are among the most beautiful in the Sundgau region. The rock shelter of Mannlefelsen, a major Mesolithic site in Alsace, precedes the Ebourbettes, which tell the story of General Giraud's escape in 1942. Further on, the ruins of Morimont offer an interesting history lesson on how a medieval castle was adapted to firearms.

During this fourth stage, you will walk along the banks of the Doubs to Tariche. You will cross the Doubs on a self-service boat. Then you will follow a ridge overlooking the Delémont valley and the Doubs. You will take the very pleasant Combe du Bé to reach Glovelier.

Hirtzbach is well worth a visit. The castle, English park and opulent residences of Unterdorf are neatly lined up on either side of the stream, whose banks are beautifully flowered in summer. Along the way, a rural and wooded detour leads to the site of the vanished village of Sankt-Glückern and the Landfürstenweyer, the Princes' Pond, with its still waters.

You may be surprised by the siren that, according to legend, haunts the ponds along this route. A superb hike 15 km from Belfort and 10 km from Héricourt. You will also discover a pretty village with its church and temple, beautiful countryside and forest landscapes with numerous ponds. Along the route, information boards describe part of the history of this region and the legend of the mermaid.

This last stage will take you to the capital of the Franches-Montagnes district, renowned for its horse breed. On leaving Glovelier, you will cross the Combe Tabeillon nature reserve. You will pass several small lakes, including the pleasant Plain de Saigne. You will cross the village of Montfaucon, built on a ridge. You will cross pastures where many horses graze before arriving in Saignelégier.

(!) User comment on 8 August 2025 => the extension of the wind farm means that this trail is closed to the public due to construction work (scheduled to end in November 2026). Hiking impossible due to construction work Discover some of the wind turbines at Lomont de Valonne in Vyt-lès-Belvoir. Beautiful view of Sancey, its surroundings and the Chasseral.

Along this trail of bunkers, explore fortifications dating back to the First World War, built by the German army. After the fighting in the summer and autumn of 1914, the Haute-Alsace front stabilised on along the line of Cernay-Dannemarie. The commune of Burnhaupt-le-Bas remains on the German side. In December 1914 and January 1915, the French offensive in this sector regularly broke the German lines at the cost of many lives.

A picnic area with tables overlooks the Dessoubre valley at an altitude of nearly 750 metres. Old farms dating back to the 1960s cling to the mountainside. A wild valley where, perhaps, our Comtois Gauls performed their druidic rituals in sacred clearings. A natural rock known as the Devil's Castle overlooks the Waroly waterfall. Finally, caves carved out over centuries.

Starting from Les Blanches-Fontaines south of Undervelier (Canton of Jura), this hike offers a magnificent ascent of the Sorne river and its gorges dotted with several waterfalls, passing by Lac Vert, all in a wild environment, to the hamlet of Pichoux, then climbing up to the plateau overlooking the gorges to enjoy a magnificent view. Continue along the plateau via Rebévelier, then a moderately pleasant descent down the Côte de Tirmenté to the Combe des Beusses. Return to the lush vegetation at the bottom of the valley via the Combe es Monin (home to a private foundation dedicated to children), then a short climb to Blanche Maison with another beautiful view of the landscape and a hilly descent passing above the Pré de Joux, then through several pastures towards Undervelier. Short link along the road, climbing up the Sorne to the start.

Starting from the charming little village of Vaucluse, Val Clos, this hike offers superb views of the Dessoubre valley, starting with the Baron's viewpoint, then the Cul de Vau valley and finally Vaucluse and its former priory, not to mention the various balconies overlooking the valley that you will pass along the way.