The Bagnas National Nature Reserve
The lagoons of Grand Bagnas and Petit Bagnas, which now belong to the French Coastline Commission, were designated as a National Nature Reserve in 1983. Their main interest lies in the diversity of their bird life : nearly 250 species, including stilts, ducks, flamingos, herons, birds of prey and many other migratory species.
Visitors must be accompanied by a qualified guide.

Maison de la Réserve (Visitor Centre)
Provides information on the wildlife found around Agde ; documentation (free and for purchase) ; small themed exhibitions. Staffed by the A.D.E.N.A. from Monday to Friday. Access : take the N112 road towards Marseillan Plage, then turn right before first roundabout.

"Discovering the area and the birdlife around the lagoon". Guided walk with observation equipment and documentation.
All year round (schedule may vary), weekly from June to September. Vehicle needed to access site.

"Twilight ramble". Guided walk around the Reserve, on the lookout for signs of early nocturnal activity.
Weekly in July and August (last for 2 hours).

"Discovering signs of volcanic activity in Agde". Guided walk : exploring the countryside, vegetation and geological history of Le Cap d'Agde and the Mont Saint-Loup, beginning at the cliffs.
All year round (schedule may vary), weekly in high season, with the A.D.E.N.A.

"Coastal birds and geology". Guided activity : discover the seabirds and coastal geology of Agde, from Le Grau to Le Cap, with the A.D.E.N.A.