Aquarium Marin De Tregastel

About

The Aquarium Marin de Trégastel is a one-of-a-kind marine attraction tucked into the distinctive rose‑granite cliffs of the Côte de Granit Rose in Brittany, France. Visitors begin their journey by meandering through a maze of ancient grey‑rock tunnels that once served as chapels, wartime ammunition depots, and prehistoric museums, before emerging into vibrant, hydrogen‑oxygen perfused tanks that showcase the region’s rich marine biodiversity. The aquarium’s design replicates five distinct marine habitats – the brackish foams, the tidal pools, the shallow reef, the deep‑sea abyss, and the misty “La Manche débusquée” exhibition – each offering interactive displays, live specimens, and touch‑tank experiences that delight both children and adults. An elevated viewpoint at the site’s summit provides panoramic vistas of the granite coastline, while an interactive tide station brings the science of tidal change to life. The venue blends education and entertainment, offering guided tours, classroom programs, and seasonal events that cover topics from marine biology to climate change. Accessibility features allow visitors with reduced mobility to explore the naturally steep terrain, and on-site facilities such as a picnic area, a gift shop, and convenient parking make it a family‑friendly day out. With ticket prices ranging from €6.80 for children to €25.50 for family passes, the aquarium offers whether you are a casual visitor, a school group, or a marine‑enthusiast explorer a rich, hands‑on experience that sparks curiosity and deepens appreciation for the world’s seas. The aquarium is open from Tuesday to Sunday throughout the year, with a summer schedule of 10:00‑19:00, and holiday periods that see reduced hours between 14:00 and 17:30. Sydney: visitors can purchase tickets and reserve guided tours via the official booking website.

Highlights

• Unique Cavern Setting
• Five Distinct Marine Ecosystems
• Interactive Tide Experience

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At a glance

• Typical visit: about 2 hours

Tickets & pricing