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Plus beaux trails France
Sentier des Douaniers GR34 2025 : Un trail légendaire entre falaises et océan

GR34 Customs Officers’ Trail: A legendary trail between cliffs and ocean

An adventure along the Breton coast


The Sentier des Douaniers , also known as the GR34 , is one of the most iconic hiking routes in France, running along the beautiful coastline of Brittany. This historic trail, once used by customs officers to monitor the coast, is now a must-see trail running route, offering runners breathtaking views of the ocean and pink granite cliffs. Stretching over nearly 2,000 km , it attracts trail and nature enthusiasts from all over the world for an unforgettable adventure.


A legendary and varied route


The GR34: A legendary path


The GR34 , nicknamed the "Customs Officers' Trail", runs along the Breton coast, from the bay of Mont-Saint-Michel to the tip of Brittany. This trail offers a diversity of unique landscapes, passing by fine sandy beaches, steep cliffs, wild coves and small fishing ports. For trail enthusiasts, the GR34 is a real playground, mixing technical sections and more rolling passages, where the effort is rewarded by the beauty of the maritime panoramas.


Race characteristics

Characteristic Details
Name GR34 Customs Officers' Path Trail
Distance 200 km
Place Brittany Coast, France
Type of land Coastal, Cliffs, Beaches
Difficulty High
Weather conditions Unpredictable (wind, rain)

Key sections of the trail


The trail on the Sentier des Douaniers offers several sections of interest, each with its own challenges and landscapes to discover. Among the most popular sections:


    • The Pink Granite Coast , with its pinkish-hued rock formations, is one of the most spectacular.

    • Pointe du Raz , a true end of the world, is an impressive passage, where the cliffs plunge directly into the ocean.

  • The Bay of Morlaix and its secret coves offer a more peaceful setting, ideal for recharging your batteries in the heart of nature. Each segment of the GR34 tells a story, that of the sea, the sailors and the customs officers who shaped these lands.

The challenges of a trail on the Sentier des Douaniers


A technical and demanding race


Running the Sentier des Douaniers is not just a seaside trail. The trail takes place on varied terrain, combining steep climbs, technical descents and sometimes narrow coastal paths. The cliffs, although magnificent, require constant vigilance, and the changes in altitude put a strain on the runners' endurance. However, it is this mix of technical difficulties and breathtaking landscapes that makes the GR34 a unique experience for trail runners looking for thrills.


Weather, an unpredictable factor


Brittany is known for its changeable weather conditions, and the GR34 is no exception. The sea wind can be an ally or an enemy, and the rain can make the coastal paths slippery and difficult. This is why participants in this trail must not only be physically prepared, but also mentally, to face the vagaries of the Breton climate.


The spirit of trail running: Adventure and self-improvement


A link to history


The Sentier des Douaniers is more than just a trail, it is a path full of history. Once used by customs officers to monitor the coasts and prevent smuggling, it now offers a dive into Brittany's maritime past. Each step on this trail tells the story of the generations who trod these lands before today's runners.


The GR34 experience for trail runners


The GR34 is a real adventure for nature and trail lovers. It is a race where surpassing oneself is omnipresent, but also where contemplation plays a crucial role. Each climb, each descent, each bend is an opportunity to discover an ever more beautiful, ever wilder landscape. Physical effort is intensely rewarded by the tranquility and beauty of the place. Whether solo or in a group, the trail on the Sentier des Douaniers is both a sporting and spiritual experience, a communion with raw nature.


An unforgettable trail on the Brittany coast


The GR34 Customs Trail is a unique experience for trail runners looking for adventure, nature and challenges. Between steep cliffs, wild beaches and small fishing villages, this trail offers a total immersion in the beauty of the Breton coast. For lovers of running in the great outdoors, the GR34 is a race not to be missed.


Want to explore other equally fascinating trails? Discover the most beautiful trails in France , to extend the adventure and embark on new spectacular paths.


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