The Gironde Estuary and Pertuis Sea Marine Natural Park is a protected area covering 6 500 km². 

Created in 2015, the Park ensures the healthy functioning of marine ecosystems and pays particular attention to the links between land and sea.

Like the seven other Marine Natural Parks, its aims to preserve the marine environment, enhance knowledge about it and to assist the sustainable development of maritime activities, in dialogue with local stakeholders.
It also raises awareness about the richness and fragility of oceans, and encourages their conservation.