It opened in 1996 and now belongs to the group Compagnie des Alpes, which also owns many other parks in France and Europe.

The aquarium houses 11,000 marine animals representing 600 species.

It covers 4,000 square metres (43,000 sq ft) and holds 2,500,000 litres (660,000 US gal) of water (The largest aquarium, Nautibus attraction excluded, contains 600,000 litres (160,000 US gal)).

During the visit, you can discover the underwater world in different rooms: Three attractions complete the visit: The association was created in 2003 at the initiative of the aquarium with some partners such as the city of Saint-Malo.

Its scope extends throughout the Emerald Coast, and they initiate various operations such as cleaning of natural sites, lessons for children during classrooms or participation at the "Ocean world day" established in 1992 by the United Nations.