The Océarium du Croisic, located near the port of Croisic 400 meters from the sea, is one of the largest private aquariums in France.

Spanning an area of ​​1,700 m2, it displays more than 4,000 animals distributed across 56 aquariums.

Each year it welcomes more than 250,000 visitors, making it the eleventh most visited aquarium in France. It is also the third most visited site in Loire-Atlantique.