House of the Bay of the Marais Poitevin

Museums
Temporary closure

Adult €10.00 Child (6 to 11 years old) €10.00 Teenagers (12 to 17 years old) €10.00 Free with the Pass!

Visit the Maison de la Baie du Marais Poitevin to find out all about mussel cultivation in the Baie de l'Aiguillon. Visit the fortified church of Esnandes and its ramparts with a guide, then continue your discovery on a self-guided tour of the Mussel Museum.

Guided tour, booking essential.

Additional information

. Length of guided tour: 45 minutes

The Musée de la Mytiliculture will be showing a video documentary on the ecosystem of the maritime marshes, as well as a fun, interactive museographic display on this emblematic shellfish of the bay. Accompanied by a guide from the La Rochelle Tourist Office, you can go inside the fortified church of St-Martin d'Esnandes and climb up to the ramparts. At a height of more than 15 metres, you'll have access to an exceptional 360-degree panorama of the bay, the marshes and the surrounding villages.

Reservation
Reservations must be made by telephone with the La Rochelle Tourist Office: 05 46 41 14 68 and your pass number. Subject to availability.
Opening hours
OPEN FROM 1 April 2026 TO 27 September 2026
Wednesday, Thursday, Friday and Saturday from 11:00 to 13:30 and from 15:00 to 18:30. Sunday from 11:00 to 13:30.
Seasonal closure from October to March.

Access conditions

  • Access by bike

    ADVANTAGE INCLUDED in your La Rochelle Océan Pass: get a 30% discount on bike hire.
    Present your pass at our partner Cycling Tour in La Rochelle and benefit from your discount (your pass must be activated and valid).

  • Access by bus

    Recommended bus stop : 
    Mairie d'Esnandes - Line 12  (then 8 min walk)

    ADVANTAGE INCLUDED in your La Rochelle Océan Pass: unlimited access to the Yélo bus network to get around La Rochelle. 
    In the application, press the ‘Transports en commun Yélo’ button: a camera opens and you can flash the QR stuck on the bus and located next to the driver, simply by passing your phone in front of it. Validation is compulsory at every stop on your journey.

    Details of routes, timetables and changes to Yélo bus services are available at www.yelo-larochelle.fr

  • Access by car

    Parking available in front of the entrance to the Maison de la Baie du Marais Poitevin and the church of St-Martin d'Esnandes.

    ADVANTAGE INCLUDED in your La Rochelle Océan Pass (adult rate only): receive a €10 discount on the rental of a Yélomobile car.
    Reach the sites included in your pass around La Rochelle with the yellow-topped Yélomobile car-sharing car: book in advance for 1 hour or several days and Yélomobile cars will help you get around near La Rochelle. 

    Details of fares and conditions of access to the Yélomobile service.