Val d'oise

Halloween 2025: venture into the Forest of Terror at Sherwood Parc (95)

Sherwood Parc is transformed for Halloween: come and explore the Forest of Terror, from October 1 to November 2, 2025. Do you dare to venture in?

Halloween 2025 in Osny (95): pumpkin contest and immersive trail at Château de Grouchy

The Château de Grouchy in Osny (95) opens the gates of fright for Halloween, on October 31, 2025. With pumpkin contests, bewitching tales and an immersive haunted trail, get ready for an evening of mystery and magic. So... are you ready to shiver in the dark corridors of this historic Val-d'Oise monument?

Halloween 2025 at Koezio Cergy: Ritual, an immersive experience combining cults, riddles and thrills

Koezio Cergy transforms itself into an urbex exploration ground for Halloween with Ritual, an immersive trail of enigmas, traps and an eerie sectarian atmosphere. A spooky universe to discover on October 30 and 31, 2025.

The superb all-you-can-eat brunch at the Abbaye de Royaumont in Val-d'Oise, France

The Abbaye de Royaumont in Val-d'Oise offers an all-you-can-eat Sunday brunch every last Sunday of the month. This package includes access to the historic monument and a guided tour, for a cultural and gourmet getaway 30 kilometers from Paris.

(Re)discover Royaumont Abbey, the largest Cistercian abbey in Ile-de-France

Just north of Paris, in the Val d'Oise, stands the Abbaye de Royaumont, founded in 1228 by Saint Louis and his mother Blanche de Castille. This royal abbey, the largest Cistercian abbey in the Île-de-France region, is a magnificent example of Gothic architecture. With its listed buildings, Royaumont offers a fascinating insight into French medieval history. Many events now take place on the premises, and we take you on a journey of rediscovery.

Discover the Château d'Écouen, a Renaissance jewel and national museum

Explore the Château d'Écouen, home to the National Renaissance Museum, located 20 km from Paris. Immerse yourself in the history of this exceptional site and admire its unique collections.

Royaumont Abbey now hosts shows all year round!

The Abbaye de Royaumont in Asnières-sur-Oise now offers shows and concerts every Sunday afternoon. The Festival de Royaumont has evolved into the Saison Royaumont, a truly multidisciplinary cultural experience in the heart of this historic site in the Val-d'Oise.

Octobre Rose 2025: a pink walk for solidarity in Herblay-sur-Seine (95)

On the road to solidarity! This Saturday, October 4, 2025, Herblay-sur-Seine (95) will be transformed into a sea of pink for a 5km walk in support of the fight against breast cancer, as part of Pink October.

Fête de la Science 2025: program of events in Sarcelles (95)

From October 3 to 13, 2025, the Fête de la Science returns with a host of events, tours and workshops in museums, media libraries and universities. In the Val-d'Oise, the town of Sarcelles invites you to visit the Station Numixs and the Médiathèque intercommunale Anna Langfus.

Halloween 2025: lantern-lit storytelling tours of the cellars of Pontoise (95) for children

Lantern-lit tours of the cellars of Pontoise await young and old this Halloween 2025. An original family activity for October 31, 2025.

Fête de la Science 2025: become an engineer during a workshop at the Cartoucherie Ecomuseum (95)

The Cartoucherie Ecomuseum welcomes you for an afternoon of discovery and experimentation during the Fête de la Science on October 4, 2025, when children can become engineers for a moment!

Fête de la Science 2025: geological walks in the heart of the Vexin Regional Nature Park (95)

Discover the landscapes of the French Vexin through various geological walks organized throughout the region on October 4, 11 and 12, 2025, to mark the new Fête de la Science.

Japan Mania 2025: the show dedicated to Japanese culture in Val-d'Oise

Calling all lovers of Japanese culture! The 9th edition of Japan Mania returns to Montmagny, in the Val-d'Oise region, on Saturday 11th and Sunday 12th October 2025. It's an opportunity to enjoy events, demonstrations and workshops open to the whole family.

Fête de la Science 2025: scientific events in Cergy (95)

The city of Cergy will be living to the rhythm of the Fête de la Science, a not-to-be-missed event for the curious and the passionate, from October 3 to 13, 2025. Young and old are invited to explore research, innovation and knowledge through events, encounters and unique experiences.

Halloween 2025: Do Not Finish (DNF), the zombie trail in a Val d'Oise village

Sports enthusiasts who like to scare themselves are in for a treat in the small village of Andilly, 95, where zombies are lurking, ready to make your trail run a living hell! Fortunately, other equally intense but less scary races await you, from October 31 to November 2, 2025.

French Short Course Swimming Championships at AquaVal - Centre Aquatique Alice Milliat (95)

The AquaVal - Centre Aquatique Alice Milliat will be hosting the French Short Course Swimming Championships from October 23 to 26, 2025 in Taverny, a qualifying event bringing together France's elite.

Fête de la Science 2025: discover the Gallo-Roman sanctuary at Les Vaux-de-la-Celle (95)

During the Fête de la Science 2025, discover archaeological sites throughout the Ile-de-France region, including the Gallo-Roman sanctuary of Les Vaux-de-la-Celle in the Val d'Oise on October 4, 2025.

Heritage Days 2025: what to do in Argenteuil (95), the program

Discover the Journées du Patrimoine in Argenteuil, this Saturday September 20 and Sunday September 21, 2025! Explore the town's cultural wealth, its emblematic monuments and its fascinating past during this unique weekend.

Heritage Days 2025 at Auvers-sur-Oise (95): a walk in the footsteps of the Impressionists

During the Journées du Patrimoine 2025, plunge into the heart of Auvers-sur-Oise, Van Gogh's beloved village. Discover its rich artistic and historical heritage and let yourself be captivated by its hidden wonders. Here's the program for the weekend of September 20 and 21, 2025.

Journées du Patrimoine 2025: the program at Claude Monet's Maison Impressionniste in Argenteuil (95)

For the Journées du Patrimoine 2025, Claude Monet's Maison Impressionniste welcomes you to Argenteuil on September 20 and 21, 2025.