During an exceptional opening, you are invited to discover the Ois'eau reserve during the autumn. During this visit, you can explore this refuge that is home to many species. You'll have the opportunity to learn more about this protected nature reserve and discover the rich diversity of flora and fauna that surround these ponds. A guide from Entente Oise-Aisne will be on hand to comment on the outing, making it an enriching and convivial experience. Useful information: Bring walking shoes and binoculars. Places are limited. Booking essential at the Pays d'Oise et d'Halatte Tourist Office.