On Saturday, May 23, 2026, the Festival of Nature will be celebrated around Crouy-sur-Ourcq, with a free program open to everyone. It's an opportunity to discover the discreet Négando Marsh.
It is a remnant of a medieval castle in Seine-et-Marne, now a captivating piece of heritage. The Houssoy Keep opens its doors to visitors during special guided tours, offering a unique glimpse into its secrets and history!
Residents of Seine-et-Marne and curious time-travelers alike, the Médiévales de Houssoy is set to plunge you into the heart of the Middle Ages, with its craftsmen's market, live camp and medieval entertainment, on September 20 and 21, 2025.
Like every year, botany enthusiasts await the results of the competition for the most beautiful tree in the Paris region. This year, it's a specimen planted in Crouy-sur-Ourcq that is drawing its thorn from the lot, with a view to competing for the title of "Tree of the Year 2024".
