Château de Villiers Park in Poissy

Open-air cinema in Poissy (78): three free screenings, Accrocamp, and music in the château’s park.

In Poissy, the opening credits roll under the stars. On July 17 and 31, and August 21, 2026, three free outdoor screenings invite kids and grown-ups to enjoy a movie in a laid-back summer atmosphere.

Accrocamp Poissy, the tree-climbing course in Yvelines (78)

Located in the Parc du Château de Villiers in Poissy, in the Yvelines department, Accrocamp is a family-friendly adventure course. With its annual reopening at the end of March, this nature-filled spot is the ideal setting to venture among the trees.