Parc naturel du vexin

Fête de la Science 2025 : des balades géologiques dans le VexinFête de la Science 2025 : des balades géologiques dans le VexinFête de la Science 2025 : des balades géologiques dans le VexinFête de la Science 2025 : des balades géologiques dans le Vexin

Science Festival 2026 in Vexin (95): discover the landscapes on geological walks

Head out to explore the landscapes of the French Vexin through a series of geological walks held across the region on October 3, 4 and 11, 2026, as part of the new edition of the Science Festival.
Le Château de la Roche Guyon, le château troglodyte dans le Val-d'Oise - 95 - vue façadeLe Château de la Roche Guyon, le château troglodyte dans le Val-d'Oise - 95 - vue façadeLe Château de la Roche Guyon, le château troglodyte dans le Val-d'Oise - 95 - vue façadeLe Château de la Roche Guyon, le château troglodyte dans le Val-d'Oise - 95 - vue façade

5 station-to-station hikes to explore the Vexin Regional Natural Park and the Val-d'Oise

To the west of Paris, in the Val-d'Oise department, lies a vast regional natural park: join us to discover its treasures on foot, through hikes accessible by public transport.
Vétheuil, village du Val d'Oise - 4B08CEA2 C41B 4649 BF10 10A03F463F33Vétheuil, village du Val d'Oise - 4B08CEA2 C41B 4649 BF10 10A03F463F33Vétheuil, village du Val d'Oise - 4B08CEA2 C41B 4649 BF10 10A03F463F33Vétheuil, village du Val d'Oise - 4B08CEA2 C41B 4649 BF10 10A03F463F33

The Vexin Express: the great touring trek in the French Vexin Regional Park (95)

The Val-d'Oise département is home to the Parc Naturel du Vexin, a protected green space and a gem of a hiking area. We invite you to cross it on the Vexin Express.
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A ride with a donkey in the Vexin nature park, a guaranteed change of scenery just 40 minutes from Paris!

Want to get away from it all without going too far? Head for Terres de Seine, the perfect haven for a mini-retreat in the heart of nature, less than 40 minutes from Paris. Here you can take a donkey ride through the magnificent landscapes of the Vexin nature park. An unusual adventure for the whole family or a group of friends!