The Journées de l'Archéologie, a date that has something for everyone: the curious, families, and explorers keen to dig into History... quite literally. This summer cultural event invites the public to better understand excavations, the objects unearthed, the careers of researchers, and more broadly how we reconstruct the history of regions. In 2026, it will take place the weekend of 12 to 14 June, and of course the Île-de-France region will be part of the action!
In Guiry-en-Vexin, the town seizes the chance to dive into the heart of local heritage. Nestled in the village center in the Vexin Français region, the Val d’Oise Archaeology Museum is devoted entirely to discoveries unearthed beneath the Val d’Oise. It is even the only departmental museum in Île-de-France dedicated to preserving and showcasing the excavations conducted on the territory. Its permanent route takes visitors on a broad journey—from the Crétacé’s geological landscapes to the 1940s, with a clear emphasis on local history. Over nearly 1,000 m² spread across two floors, guests traverse 90 million years of evolution, moving through fossils, tools, sculptures, everyday objects, and testimonies of ancient societies.
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The Quest for Francs!
The Quest for Francs!
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Kids and grown-ups are invited to tackle a series of athletic and playful challenges designed for the whole family. Agility, dexterity, teamwork, and sharp observation will be your best allies to master the tests. With each challenge you complete, you'll earn a seal. Can you collect them all? Once the mission is accomplished, rally your strength to storm the fortress!
In partnership with the CRAVF and the SDAVO
Participation conditions: Free of charge | Special free admission | No reservation required
Hours: Sunday, June 14, 2026 — 10:00 AM to 6:00 PM
In search of the Merovingian tomb
Escape game
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### In Search of the Merovingian Tomb
Professor Perin is a renowned university scholar specializing in early medieval archaeology, with a focus on the Merovingian era. He can’t locate a bird-shaped fibula set with a semiprecious stone that he was studying in the lab. A courier will pick it up in under thirty minutes to take it to a museum where it will be displayed. You have 25 minutes to find it. Will you be up to the challenge?
Escape game designed by TerreHistoire Conseil
Participation conditions: From 8 years old, a limited number of spots per time slot. The activity lasts 45 minutes. Departures at 11:00, 12:00, 14:00, 15:00 and 16:00. - Free | Exceptional free entry | No reservation required
Schedule: Sunday, June 14, 2026 — 11:00 to 16:45
This page may contain AI-assisted elements, more information here.
Dates and Opening Time
On June 14, 2026
Location
Val d'Oise archaeological museum
4 Place du Château
95450 Guiry en Vexin
Route planner
Access
RER A station "Cergy le Haut", then bus 95-23 stop "Abribus".
