The Under-Marsh Adventure

And the extraordinary crew of the Marais Audomarois...

Immerse yourself in the extraordinary world of the Marais Audomarois

Immerse yourself in the extraordinary world of the Marais Audomarois

Live the Sous-Marais adventure. Unique and fantastic, this visit to the Audomarois marshes will appeal to your imagination...

The Sous-Marais has portholes as round as a fish's eyes, an extravagant metal frame, the sound of a sonar, the feeling that at any moment the reactors are going to start...

Rub your eyes carefully: indeed, you are now inside the largest freshwater submarine ever seen!

Come aboard the Sous-Marais

Stopover in the heart of the Maison du Marais, this 24m long freshwater submersible is unique in its kind. He has always taken the crew on all their outings through the more than 3,700 hectares of the Audomarois marshes. Young and old will get to know the unique world of these extraordinary characters, for an incredible visit to the Audomarois marsh.

Useful information

Opening moment

Monday 14:00 at 18:00
Tuesday 14:00 at 18:00
Wednesday 14:00 at 18:00
Thursday 14:00 at 18:00
Friday 14:00 at 18:00
Saturday 14:00 at 18:00
Sunday 14:00 at 18:00

Payment methods

Credit card

Credit card

Postal or bank cheques

Postal or bank cheques

Holiday vouchers

Holiday vouchers

Cash

Cash

Administration money orders

Administration money orders

Information

Pets allowed

Omerveilleux Pass Logo

Avantage(s) avec Omerveilleux Pass

10% off the shop

Free entry with Pass Omerveilleux.

Discover the PASS

A crew watching over an Audomarois marsh

They are captain, archaeologist, machinist, biologist or even “rumorologist”. Consequently, they are recognized as true experts in their fields and they work hard to better understand and preserve this unique and exceptional natural space that is the Audomarois marsh...

From the escape of a Royal Air Force pilot to the discovery of the typical market gardeners' tools, including the control of water and the shaping of this landscape by the hand of man for more than 13 centuries, the The Sous-Marais exhibition is also an opportunity for young and old to learn more about the means of safeguarding this exceptional heritage on several levels.

Classified as a Biosphere Reserve by UNESCO, the marsh is the center of very particular attention from an environmental point of view with the aim of preserving its riches and its ecological particularities.

Extend your discovery with some of the 29 species of fish found in the marsh. Our aquariums welcome some of their representatives.

Ready to try the adventure?

Ready to try the adventure?

So leave everyday life on the surface and dive aboard the Sous-Marais! Keep your eyes peeled, a member of the crew might come to meet you...