Between earth and sea. Mortagne-sur-Gironde, located in the heart of the marshes, offers an atypical stopover on the Gironde estuary. Once a prosperous trading port and important sturgeon fishing centre, the port of Mortagne is now a marina for 150 boats. During your stop-over, you can dive into the heart of the marshes and walk along the estuary path which leads you to the banks of the Gironde.