When the festive spirit fills the streets and warms up the winter, Sartrouville, in the Yvelines (78), promises a day full of magic: treats at the Debussy market, a meeting with Santa Claus, ice skating, a fairy-tale parade, and activities for children and adults at the Dispensary Park. From creative workshops and pony rides to a Christmas Pop Rock concert, December 21, 2025, will end with a spectacular, must-see light display!