"Immerse yourself in the Brière" : A unique, interactive experience in the very heart of the Brière marshes. Put on a sturdy pair of shoes or boots and set off to discover the treasures of Brière Regional Natural Park. Experience the Park with all five senses, and marvel at new revelations! Using your fun digital app, you can explore Brière’s natural resources. Close to Saint-Nazaire, and starting off at the Port of Rozé, passing through the Regional Nature Reserve, you can take an original route that changes with the seasons, discovering what this marshland is used for, its landscapes and observing the fauna and flora, which will make for a very interesting and varied visit. From January to June, visit the flooded marsh by taking a 2.5-km trail (round trip). From June to January, discover the Park by taking a 3-km loop trail through the marshes. Download your Immersion route before leaving and make the most of your walk without Internet connection.