Experience the Sous-Marais adventure. Unique and fantastic, this tour of 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 sonar, the sensation that any minute now reactors are going to start up...
Rub your eyes: you are now inside the largest freshwater submarine ever seen!