Fort l'Écluse

Historic site and monument
Fort

Longeray, 01200 Léaz

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- From€6.00
  Full-fare
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- - 04 50 56 73 63
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Concerts, festivals, events and exhibitions, enjoyed by thousands of visitors, make Fort l'Ecluse an unmissable place to discover and enjoy... Well beyond the borders of Pays de Gex.

Perched above the Rhône, Fort l'Ecluse dominates the skyline. Dating back 700 years, it has many stories to tell. Come and discover them during self-guided or guided tours, through the fascinating scenography of the exhibition ‘Au cœur de la Cluse’ (At the heart of the Cluse) and the spectacular sound and light show "Fort l'Ecluse: 20,000 years of history ". There's something for everyone!
Thanks to its immersive exhibitions, dive into ‘Au cœur de l'orage’ (In the heart of the storm) and set off to ‘discover the lesser horseshoe bats’, the Fort's bats, and explore the temporary exhibition ‘Intuitions croisées’ (Crossed intuitions).
The summer events will thrill you: the 13th edition of the Jazz in Fort l'Ecluse festival, classical concerts by the Soloist Academy, Nuit des étoiles (Night of the Stars), and more.
And for those who want to get active, there are sporting activities: an adventure course with breathtaking views at the Upper Fort, a free-access via ferrata and hikes. Not to mention the challenge of obtaining the famous staircase diploma: climbing the 830 steps of the underground gallery that connects the Lower Fort to the Upper Fort.

Services

Temporary exhibitions

Shows

Theatre

Activities

bus parking

Parking nearby

Meeting room

Car park

Public toilets

Bar

Picnic area

Exhibition hall

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Accessibility

Accessible for wheelchairs with assistance

WC + grab handle + adequate space to move

Visual alarm with flash light

Reception staff sensitized to the reception of people with disabilities

Mobility impaired

Visually impaired

Rates

From 13 June 2026 to 20 September 2026

Standard rate - adult full price

€6.00

Reduce rate

€4.50

Adult group

€5.50

Children's group

€4.00

Free with proof of age: children under 6, RSA recipients.
Family rate (2 adults and 2 children): €17
Full-fare annual pass: €10

* The annual pass also gives access to the five departmental museums (Bresse, Bonnet silk, Resistance and Deportation, Revermont and Bugey-Valromey museums).

- Combined ticket Fort l'Ecluse / Château de Voltaire: €12
- Pass'Découvertes de l'Ain, a digital pass allowing you to visit 3 sites at a smart price!
3 sites of your choice, excluding Parc des Oiseaux: €19
3 sites to choose from + the Park: €31

** A full-price ticket entitles the holder to reduced-price admission to the Musée de la Résistance et de la Déportation de l'Ain.