Challenge the secret routes of Hermetton 

On Saturday 17 May 2025, embark on an exceptional Gravel adventure in the Ardennes, organised by the Hard'n Marathon, to be held on 17 and 18 May. Get ready to explore unique courses through lush forests, winding rivers and picturesque trails in the heart of the Hermetton valley.

Embark on one of our two 60km or 110km routes, in touring mode, for a challenge that's both sporting and contemplative. Whether you're a keen cyclist or an amateur looking to discover new things, this Gravel adventure in the Ardennes will provide you with an unforgettable experience.

Get ready for a day of effort, nature and pleasure. The Hermetton trails are waiting for you !

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