The electro festival by the lake with a floating stage
Born in 2023 in Châteauneuf-sur-Isère, Ō Lac Festival is an electronic music festival held every summer on the banks of Lac d'Aiguille, in an exceptional natural setting. Its floating stage on the water, the festival's visual signature, offers a unique experience to festival-goers. Over three days in July, Ō Lac Festival features international artists from the electro and house scene, attracting over 8,000 people each year in a spirit combining music, nature, and innovation.
Since 2023, the Ō Lac Festival has established itself as a must-attend event on the electronic music scene in Auvergne-Rhône-Alpes. Located on the shores of Lac d'Aiguille in Châteauneuf-sur-Isère, in the heart of the Valence Romans agglomeration, this festival takes advantage of an exceptional natural setting to offer a unique musical and visual experience.
The floating stage of the Ō Lac Festival has become the festival's emblem. Set up on the waters of Lac d'Aiguille, it offers a striking visual spectacle, with artists performing literally on the water, surrounded by light shows that reflect on the lake's surface. This unique staging creates a magical and immersive atmosphere that sets Ō Lac apart from all other electro festivals in the region.
For three days, the Ō Lac Festival features the best international electronic music artists. Among the headliners who have graced the floating stage: The Avener and Jimmy Sax, Kungs, Purple Disco Machine, Claptone, Boris Way, Hugel, Vladimir Cauchemar, and many others. The lineup skillfully blends house, deep house, electro-pop, and tech house, offering an eclectic musical journey that appeals to both electronic music enthusiasts and the curious.
The Ō Lac site, located at 430 Route du Lac in Châteauneuf-sur-Isère, benefits from a privileged natural environment on the edge of Lac d'Aiguille. The former Palais des Congrès Sud Rhône-Alpes has been transformed into a unique event space, combining outdoor areas by the water with modern infrastructure. The green setting and proximity to the water create an atmosphere of relaxation and celebration that contrasts with the usual industrial sites of electro festivals.
In just a few editions, the Ō Lac Festival has brought together over 8,000 festival-goers over three days, confirming the enthusiasm for this new musical event. Driven by the Émotions association and the Ō Lac team, the festival continues to grow while preserving the intimate spirit and quality of experience that are its strengths. The ambition is to become one of the reference electro festivals in the Rhône valley.
The 4th edition of Ō Lac Festival will take place from July 3rd to 5th, 2026, by Lac d'Aiguille in Châteauneuf-sur-Isère. Three days of electronic music with a floating stage in an exceptional natural setting.
Ō Lac Festival returns from July 3rd to 5th, 2026 for its 4th edition by Lac d'Aiguille in Châteauneuf-sur-Isère. The lineup and ticketing will be announced in the coming months on the festival's official website.
Address: Ō Lac, 430 Route du Lac, Quartier des Communaux, 26300 Châteauneuf-sur-Isère
By car: Accessible via the A7 (Valence Nord exit) then follow signs for Châteauneuf-sur-Isère. Parking available on site.
By shuttle: Shuttles are provided from Valence center during the festival.
3-day Early Pass: €119. 3-day Regular Pass: €135. 3-day Pass + After: €159. Evening tickets available.
Site opens in the late afternoon. Concerts and DJ sets until early morning.
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Ō Lac (Lac d'Aiguille)
430 Route du Lac, Quartier des Communaux, 26300 Châteauneuf-sur-Isère