From mysterious forests, ancient abbeys and storied castles full of history, Val-d’Oise becomes the perfect backdrop to celebrate Halloween 2026 with family or friends. On the occasion of the Toussaint holidays, the 95 department comes alive with haunted evenings, creative workshops, costumed performances and night-time routes that plunge young and old into an atmosphere worthy of a fantasy film. The department promises a Halloween experience rich with shivers, laughter and discoveries, at the heart of Île-de-France’s most iconic sites.
Every year, Val-d'Oise towns, castles and amusement parks go to great lengths to test your courage in escape games specially designed for Halloween, terrifying races where zombies are on your heels, or quieter workshops to create your own pretty decorations as a family, in an atmosphere that's both festive and more or less spooky depending on the target audience.
The more adventurous will be tempted by immersive evenings or night-time hikes in the woods, by lantern light and the sound of crackling leaves, but beware of what might follow you into the woods or into the dimly-lit alleys of the villages of 95...
Halloween 2026: a haunted trail and monsters in the Forest of Terror at Sherwood Parc (95)
Sherwood Parc transforms for Halloween: come explore the Forest of Terror, from October 1 to November 1, 2026. Will you dare to venture there? [Read more]
Halloween 2026 at Château d’Auvers: forest tales and family-friendly cinema
Storytelling walks in the park and family-friendly cinema: the Château d’Auvers Celebrates Halloween on October 28 and 31, 2026, weaving forest mysteries, legends, and a dose of Monster House. [Read more]
Halloween 2026 in Montmorency: a free escape game at the Jean-Jacques Rousseau Museum
A stolen manuscript, Rousseau's ghost, and an investigation in his house: the Montmorency Museum offers a free family-friendly escape game on October 31, 2026. [Read more]
Halloween 2026: a DNF (Do Not Finish) race to give you chills and push yourself to the limit in Andilly (95)
Sports fans will especially love Halloween this year, as a major running race is set to take place near Andilly (95). There are kids’ events or a DNF format, so there’s something for everyone, from beginners to the more seasoned runners. [Read more]
Halloween 2026: murder party, werewolves, buffet and family workshops at Royaumont Abbey (Val-d'Oise 95)
For Halloween and the All Saints' Day holidays, the Royaumont Abbey calls up ghosts from its past to give the whole family chills! Discover the program, from a murder mystery party to a werewolf game, a bloody buffet and workshops for kids, on October 30 and 31. [Read more]
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