The towns of Méry-sur-Oise and Mériel light up the Val-d'Oise (95) for Bastille Day 2026! On July 13, the eve of a public holiday, the château’s park will come alive with karaoke, a traditional dance, lanterns, and fireworks.
Wizards, fairies and dragons will take over the park of the château de Méry-sur-Oise on Sunday June 8 for "Méry Fantasy", a free festival dedicated to magic and the imaginary. Entertainment, shows and workshops will transport young and old into a magical world, just a stone's throw from Auvers-sur-Oise.
