Nature Festival 2026: a nature-and-canoe day on the Négando Marsh in Crouy-sur-Ourcq

Published by Margot de Sortiraparis · Updated on May 21, 2026 at 12:04 p.m.
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.

The Fête de la Nature 2026 returns from May 20 to 25, 2026 across France. For its 20th edition, this national event invites both kids and adults to rediscover biodiversity through outings, workshops, observations and free encounters.

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The event is open to families, walkers, environmental enthusiasts, and visitors who want to gain a deeper understanding of the living world right on their doorstep. On the agenda: nature-watching outings, wildlife observations, animations around forests and living soils, and educational workshops for children and adults. Created in 2007, the Nature Festival emphasizes direct experience: looking, listening, touching, and understanding natural environments, in the city as well as in the countryside.

Situated in Seine-et-Marne, the small town of Crouy-sur-Ourcq counts among its natural treasures the marais de Négando. Still wild and little-known, the area is preserved and offers beautiful walks, on foot, by bike or in a canoe.

What’s on for Nature Day 2026 in Crouy-sur-Ourcq:

  • Canoe trips, from 10:00 to 18:00 (children under 12 must be accompanied by an adult on the boat; un-swimmable minors must be with two adults on a 3-seat canoe). Accessible from age 7, with a minimum swimming ability of 25 meters. Dogs are allowed but please notify us in advance (at 06 14 72 93 49) to ensure you have an appropriately equipped canoe.
  • Water games (courses and activities for all ages)
  • Outdoor social area, with a beverage stand and quick-service food on site
  • Guided tour of the Negando Marsh, led by CPIE des Boucles de la Marne, from 14:00 to 17:00 (rendezvous at Crouy-sur-Ourcq station for departure). Booking required by email (sorties@cpie-bouclesdelamarne.fr) or phone (01 64 33 22 13)

For the guided tour, you’ll be able to borrow binoculars and observation guides, but feel free to bring your own! For the canoeing, plan a safety phone per group of paddlers, closed-toe shoes (sneakers worn without socks), insect repellent for flying insects, a swimsuit or shorts, a windbreaker and jogging pants (in case of rain), sunscreen, a towel, a change of clothes, and a bottle of water! Have a wonderful time in nature, everyone!

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Practical information

Dates and Opening Time
On May 23, 2026

× Approximate opening times: to confirm opening times, please contact the establishment.

    Prices
    Free

    Official website
    fetedelanature.com

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