The 2026 Paris EcoTrail: date of the nature race, route, and ticket sales opening

Published by Graziella de Sortiraparis, Margot de Sortiraparis · Updated on October 28, 2025 at 04:05 p.m. · Published on July 30, 2015 at 11:38 a.m.
Whether you're a fan of trails up to 120km or Nordic walking, the EcoTrail de Paris returns on March 21 and 22, 2026, for a nature race on the trails of the Paris region. Registration is now open!

Sports enthusiasts, the EcoTrail de Paris will be back in Paris on March 21 and 22, 2026, for a new edition of its nature race through the Yvelines, Hauts-de-Seine, and the capital ! Trail enthusiasts in the Paris region will be delighted, as registration is already open!

What's on the menu? Several races of different levels to be completed solo or in a group, as well as Nordic walking. It's an opportunity to (re)discover the trails of the Paris region in a festive and friendly atmosphere. From 10 to 120km, the discipline is becoming even more accessible, even to beginners, from Paris to Rambouillet, via Meudon and the Chevreuse Valley.

The different routes

  • 120km trail

Designed for ultra-trail runners looking for a challenge, the 120km Trail is the big new addition to the EcoTrail Paris. This exceptional course crosses the forests, hills and trails of western Île-de-France, with a remarkable passage through the heart of the Chevreuse Valley and its iconic castles. A unique adventure to experience, culminating in a majestic finish at the foot of the Eiffel Tower, on the Pont d'Iéna bridge.

  • 80km trail

The 80km Trail has been the historic distance of the EcoTrail Paris since 2008. With its unique finish line on the 1st floor of the Eiffel Tower, rewarding finishers, the course is an invitation to discover unusual places in the west of the Paris region and the ideal opportunity to kick off your (ultra) trail season.

  • 45km trail

Starting in the gardens of the Palace of Versailles, the 45km Trail offers finishers of the 30km Trail in previous years the opportunity to take on a new challenge. This nature trail is also an ideal transition for all marathon addicts wishing to convert to medium-distance trail running.

  • 35km Trail

More technical and demanding than the 30km Trail, the 35km Trail is for runners ready to take it to the next level. With its hilly trails, forest passages, and more challenging profile, it offers an authentic trail running experience in the heart of western Paris. An intense adventure crowned by a finish in a unique setting: the Paris-PSL Observatory in Meudon, with a breathtaking view of the capital.

  • 30km trail

Starting from the Terrasse de l'Observatoire de Paris - PSL, the 30km Trail allows you to experience all the specificities of a trail run (managing distance and a series of hills, mental strength and nutrition management). This nature trail is suitable for finishers of the 20km Trail (formerly 18km) from previous years and half-marathon runners wishing to convert to trail running.

  • 20km trail

Starting at the Domaine National de Saint-Cloud and finishing at Meudon on the Terrasse de l'Observatoire de Paris - PSL, the 20km Trail offers the opportunity to experience the trail atmosphere in a 100% natural setting, accessible to all and with some beautiful hills to boot.

  • 10km trail

This course is above all an opportunity for everyone to discover the practice and atmosphere of trail running. The distance will be suitable for all beginners to running.

  • Nordic walking

Following on from the trail running events, the Nordic walking events demonstrate the desire to introduce as many people as possible to the cultural and natural heritage of the Ile-de-France region. These events will not be ranked but will be beautifully timed.

Ready to rediscover the Paris region on the run?

Practical information

Dates and Opening Time
From March 21, 2026 to March 22, 2026

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

    Prices
    €32 - €200

    Official website
    paris.ecotrail.com

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