What to do in Val-d'Oise (95) for the 2026 Science Festival? The program

What to do in Val-d’Oise (95) during the 2026 Science Festival? Museums, universities, media libraries and research centers open their doors to the public with science activities from October 2 to 12.

The Fête de la Science returns with a rich lineup of events from October 2 to 12, 2026, centered on the theme "Savvy Flavors" across Paris and the Île-de-France region. A wide array of activities is planned for this new edition across the departments of Île-de-France, notably in Val-d'Oise, for all ages. It’s bound to spark curiosity in the youngest and help nurture the scientists of tomorrow!

This incredible cultural event offers free educational workshops, conferences, escape games and other activities based on the vast universe of science, from climate and biodiversity to space. The whole family can take part, and meet scientists who will be exhibiting their advances and exceptional research at universities and museums across the département.

And for those brave enough to travel a little further afield, we don't hesitate to take a look at events in neighbouring départements, or even in Paris itself, with even more events on the programme!

Science Festival 2026: the schedule of activities across Paris by arrondissement
For this year's Fête de la Science 2026, Paris invites curious people of all ages to meet scientists and take part in free activities and workshops across the city’s museums and institutions from October 2 to 12, 2026. Explore the program by arrondissement in the capital! [Read more]

Science Festival 2026: free activities you won’t want to miss in Paris and Île-de-France
From October 2 to 12, 2026, the Fête de la Science returns to Paris and the Île-de-France region for its 35th edition, featuring free activities open to all. Experiments, workshops, performances, tours and open doors invite both children and adults to explore science in all its forms. [Read more]

The 2026 Science Festival lineup in Val-d'Oise:

The program is currently being updated. Check the page regularly for new features.

Science Festival 2026 in Chars (95): a stroll through the stones and landscapes of the Vexin
The 2026 Science Festival stops in Chars (95) with a geology walk in the heart of the French Vexin, on Sunday, October 4. This free, reservation-based outing invites the public to explore the landscapes, geology, and natural history of the Viosne valley along a guided route. [Read more]

Science Festival 2026 in Saint-Ouen-l’Aumône (95): what’s on the program
The Science Festival 2026 settles in Saint-Ouen-l’Aumône, in the Val-d’Oise, from October 2 to 12, with free activities for families, young people and the curious. It’s a chance to discover science in a concrete, accessible way while meeting local players who help pass on knowledge. [Read more]

Science Festival 2026 in Vexin (95): discover the landscapes on geological walks
Head out to explore the landscapes of the French Vexin through a series of geological walks held across the region on October 3, 4 and 11, 2026, as part of the new edition of the Science Festival. [Read more]

Science Festival 2026 at Archéa (95): an archaeozoology workshop from excavation to the laboratory
The Festival of Science returns to Paris and the Île-de-France region with numerous workshops, meetings, and activities accessible to everyone, from October 2 to 12, 2026. At Archéa, the Archaeology Museum in the Pays de France, young and old discover zooarchaeology by observing and handling animal bones, from excavation to laboratory work. [Read more]

Science Festival 2026 in Cergy (Val-d'Oise): the lineup of science activities
La Fête de la Science returns to Cergy in the Val-d’Oise department (95) with activities, researcher encounters, and hands-on experiments accessible to kids and grown-ups alike, shining a light on research, innovation, and major scientific topics—from October 2 to 12, 2026. [Read more]

Happy Fête de la science to young and old alike!