The beaches contain a rich variety of vulnerable flora and fauna species forming a very special and fragile natural area that the Conseil Général de la Gironde wants to conserve. 

Sensitive Natural Areas are sites that are remarkable by reason of their biological and landscape diversity; they are developed and managed by the Conseil Général de la Gironde.

Places where two worlds meet are always enriching, and this area is no exception to the rule.
Here, where salt water and fresh water come together, there has certainly been an effect on nature, but also on man, who has shaped the landscape to match his economic activities.

The Ile Nouvelle lies opposite Blaye, at the heart of the largest estuary in Europe. It is 6 km long and 700 m wide.