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 on self-guided or guided tours, through the fascinating exhibition “Au cœur de la 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 “Au cœur de l’orage” and set off to discover the lesser horseshoe bats and the Fort’s bats.
Also discover the temporary exhibition “Intuitions croisées”, which brings together the worlds of FotOZé and Clau Redier-Clément, from 26 June to 30 August. Combining photography and painting, this exhibition explores a shared vision: creating a dialogue between the real and the intuitive, memory and emotion, the visible and the implied.
Summer events are sure to thrill you: the 13th edition of the Jazz in Fort l’Ecluse festival, classical concerts by the Soloist Academy, Nuit des étoiles…
And for those who fancy a bit of exercise, there are sporting activities: an adventure trail with breathtaking views at the Upper Fort, a free-access via ferrata and hiking trails. Not to mention the challenge of earning the famous ‘staircase diploma’: climbing the 830 steps of the underground gallery linking the Lower Fort to the Upper Fort.
One 60-seat meeting room. Fast food on site with regional products. Refreshment bar.
Reception staff sensitized to the reception of people with disabilities
Rates
From 13 June 2026 to 20 September 2026
From 13 June 2026 to 20 September 2026
Full price
€6.00
Reduced price
€4.50
Group adults
€5.50
Group children
€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.