RÉSERVE NATURELLE - SITE DE PIERRE CONSTANT

Observatory

Port de Rozé, 44550 Saint-Malo-de-Guersac

Visite réserve ornithologique Pierre Constant Brière — ©
© SNAT / Jérôme Bosger

Visite guidée nature site de Pierre Constant dans le Parc naturel régional de Br — ©
© SNAT / Jérôme Bosger

Observation des oiseaux réserve ornithologique du Parc naturel de Brière — ©
© SNAT / Jérôme Bosger

Observatoire de la réserve ornithologique de Pierre Constant en Brière — ©
© SNAT / Jérôme Bosger

Oiseaux à découvrir dans la réserve ornithologique de Brière — ©
© SNAT / Jérôme Bosger

- See opening hoursWarning: Unsecured hours
- - 02 40 91 68 68
  Contact RÉSERVE NATURELLE - SITE DE PIERRE CONSTANT
  * : champs obligatoires
  Period
  From
  to
  Civility ^*
  Name ^*
  First name ^*
  Email ^*(Ex: [email protected])
  Phone
  Message ^*
  I would like to receive information from :
  Saint-Nazaire Agglomération Tourisme
  ^* You may at any time unsubscribe our mailing lists.
  Under the General Data Protection Regulation (GDPR), the personal information collected via this form is intended for the service provider indicated on the relevant website page and the website publisher, who are responsible for processing it within the limits of their respective remit. This information is necessary to manage requests from various contacts at the two establishments, including receiving them electronically, forwarding them to the relevant departments, recording requests and responses to contacts, and compiling statistics on departmental activity. For more information, please see the privacy policy.
  Thanks. Your message has been sent.
  Une erreur est survenue lors de l'envoi du formulaire.
  - www.parc-naturel-briere.com

A must-see visit to discover the flora and fauna of the Brière and the work being done by the Regional Nature Park. At the ornithological observatory, you can watch Spoonbills, Bluebirds, Egrets...

⚠️ SITE TEMPORARILY CLOSED⚠️ Open from 18 April to 1 November 2026. Open 7 days a week from 9.00 am to 6.00 pm for self-guided tours. Guided tours from May 2026: > From 17 May to 5 July: Sundays, Tuesdays and Thursdays | 10.00 am and 3.30 pm, > From 5 July to 20 August: Sundays, Mondays, Tuesdays and Thursdays | 10.00 and 15.30, > From 23 August to 15 October: Tuesdays and Thursdays at 10.00 | and Sundays to Wednesdays at 15.30 Booking essential: Maison du Parc 02 40 91 68 68 or at https://www.parc-naturel-briere.com/agenda/ Parking is available at the Rozé lock, followed by a walk: cross the two Rozé lock bridges, then take the path which runs alongside the Rozé Canal on your right for 800 metres.