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The Hydronaute will be the first boat equipped with our solar-electric exoskeleton. Silent, stable and respectful of wildlife, it will offer a unique immersion in the heart of the Erdre: gentle navigation, bird watching, discovery of nature without disturbing living things.

A moment of relaxation that truly contributes to the local ecological transition .

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This is not a pleasure boat like any other: it is a pioneer, equipped with a unique system.
With every meter traveled, the Hydronaut filters the river, capturing plastics before they reach the ocean.

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Over a distance of about fifteen kilometers, you cross a Natura 2000 classified area, a refuge for an exceptional number of species, with more than 200 birds observed each year.

The boat becomes a stable, discreet observation post , ideal for photographers, naturalists, and slow travelers. Navigation at your own pace, with the sensation of gliding through the heart of an untouched ecosystem .

Between Nantes and the Nantes-Brest Canal, the boat trip crosses varied landscapes: castles, woods, wet meadows, hidden bridges, calm meanders and opens access to one of the longest river routes in Europe, linking the Loire to the heart of inland Brittany.

THE BOAT

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Designed in the 80s, it bears the signature of an era when robustness took precedence over aesthetics.
After six years of renovation in dry dock, it has been given a second wind.

Transforming a worn-out hull is like writing a living manifesto against obsolescence, a silent rebellion against oblivion and overconsumption.

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Welcome aboard

Enjoy an immersive observation experience in the heart of the Erdre, one of the most beautiful rivers in France.

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Moored in the heart of Nantes , the city of Jules Verne, L'Hydronaute is a boat designed for exploration. A space to move at the rhythm of the river, get away from the noise, rediscover the essential .

Designed for self-reliant adventurers, it can be rented without a license, in total independence , for a night on board or for a longer expedition.

Our vision :
The moment you board the Hydronaut, the weight you exert on the planet vanishes.
For the duration of a trip, we cease to weigh on the world and simply learn to inhabit it - without a trace: no carbon, no noise, no impact.

With the support of 

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This project received support from the Pays de la Loire Region
within the framework of France 2030.

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