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Multiday gravel bike trip on Grandes Traversées du Jura

Description

This gravel adventure invites you to discover the Jura Massif over nearly 400 km from North to South!

From Mandeure in the Doubs to Culoz in the Ain, this gravel route partly follows the existing mountain bike route and escapes from it when the paths become too technical to offer trails, forest roads or roads rarely used by vehicles to better match to the particularities of the gravel bike.
Like the mountain bike routes, the gravel path allows you to discover the immense variety of landscapes of the Jura Mountains. Facing the Alps, you will discover the Jura massif through its valleys and plateaus.
Along the 384 km of the Grande Traversée gravel marked trail, numerous accommodations await you. From the stopover gîte to the hotel, including guest rooms, inns, refuges and campsites.

Find all the information relating to accommodation / catering along the route, news (temporary diversions), preparation advice and official tracks on the Grande Traversée du Jura VTT website.
It takes between 6 and 9 days to complete the entire route depending on your level.
The return is from the Culoz train station (Lyon - Geneva line) to Mandeure.
Recommended route: Culoz - Lyon then Lyon - Montbéliard (direction Nancy).
From Montbéliard: join the start in Mandeure 14 km away by cycle path crossing Sochaux-Montbéliard via Exincourt, Audincourt and Valentigney.

Technical Information

Gravel
Difficulty
Not specified
Duration
5h (7d)
Dist.
384 km
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Altimetric profile

Starting point

Rue de la gare Culoz , 01350   Culoz-Béon
Lat : 45.843346Lng : 5.778783

Points of interest

image du object

Lèbe Observatory

Located in Valromey sur Séran in the Bugey Sud, the Observatoire de la Lèbe is entirely dedicated to the discovery of astronomy for all.How about taking the time to observe the stars? A unique place in the Ain, the Observatoire de la Lèbe in Valromey sur Séran in the Bugey Sud offers you the opportunity to familiarise yourself with the galaxies, stars and planets through fun and exciting astronomical activities. All year round, upon reservation, the Observatoire de la Lèbe offers you : Planetarium sessions: Come aboard the planetarium for a virtual trip with striking realism. Guided by our scientific mediator, discover constellations, planets, nebulae, galaxies and other unsuspected wonders of the deep sky. The session consists of a film followed by a presentation of the sky by the presenter. A dive into the heart of the starry sky comfortably installed in a in a recliner. Duration: 1 hour. Sessions from Monday to Saturday (summer and school holidays). Other dates possible on reservation. Planetarium films: >Blind with starry eyes >Lucia, the secret of shooting stars >Voyager, the endless journey >From the earth to the universe >The sun, our living star Find the screenings on the agenda of our website. To schedule a session outside the dates already programmed, please contact us. More information by phone or on our website. Sun observations: observe the surface of the sun live in a 120 mm telescope equipped with a professional solar filter. Observation evenings for all: >Observation evenings: discover the sky with the naked eye and telescopes... >Family evenings" experience the magic of shooting stars and constellations in the planetarium and continue with an observation with instruments. >Celestial legends" evenings: learn to recognise the constellations and be lulled by their mythological tales. >Evscope" evenings The digital telescope that has revolutionised sky observation in recent years. Information, reservation by phone and on the internet: www.observatoiredelalebe.fr/soirees-dobservation/ Free access: Rediscover the path of the stars and its booklet sold at the Observatory and at the OT Bugey Sud Grand Colombier and spend a great moment in family in total autonomy. and have a great time with your family in total autonomy. Available every day of the year. Our course The bestiary of the sky focuses on the constellations and the animal figures associated with them. The Observatory also offers courses for adults and children. It is open all year round for groups (schools, leisure activities, associations, works councils, families...). Programmes Specific programmes on request.

669 Chemin des Etoiles Le Puy des Barres Sutrieu 01260 Valromey-sur-Séran
- Office de Tourisme Bugey Sud Grand Colombier -
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Date and time

  • From 01/05/2026 to 31/10/2026

Additional information

Updated by

Office de Tourisme Bugey Sud Grand Colombier - 11/06/2025
www.bugeysud-tourisme.fr
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Open period

From 01/05 to 31/10.

Contact

Phone :
03 84 51 51 51
04 79 81 29 06

Email : contact@bugeysud-tourisme.fr

Website :
www.gtj.asso.fr/
www.bugeysud-tourisme.fr

Type of land

Ground
Grit

Animals

No

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Caution!
We have no information on the difficulty of this circuit. You may encounter some surprises along the way. Before you go, please feel free to inquire more and take all necessary precautions. Have a good trip! 🌳🥾