© Mairie de Poisy – B. Sarrazin / Le marais de Poisy
Poisy offers a territory between marshes, fields and woods. The Montagne d’Age (672 m) is an excellent playground for hikers and mountain bikers. Discover the site of the Poisy marsh (Sensitive Natural Area). In passing, you can see the Romanesque bell tower (12th century) of its church.