Musée de la Mer de Biarritz
Built directly into the cliff face above the Rocher de la Vierge in 1933, the Musée de la Mer is one of Europe's most architecturally striking aquariums — a pure art-deco cube of white concrete cantilevered over the Atlantic. Inside, the focus is entirely on the Bay of Biscay ecosystem, with a shark tank, a colony of Atlantic grey seals, and tanks of local fish species that put the morning's marke
The exhibits
The shark pool on the ground floor holds several species including small-spotted catsharks and nurse sharks; the circular design allows you to watch them from multiple angles as they circle overhead through a glass ceiling panel.
The seal enclosure is the crowd favourite — feeding sessions happen twice daily at 10:30 and 17:00 and the resident grey seals perform with considerable personality. The outdoor terrace beside the seal pool has one of the best unobstructed views of the Basque coastline in the city.
Architecture and history
The building itself is worth the visit: the rationalist art-deco façade, the curved stairwells and the original mosaic tilework in the entrance hall are all intact. The museum was classified a historic monument in 2011.
A rooftop terrace accessible from the top floor gives a 180-degree panorama from the Spanish coast to the Landes pine forests — bring a camera and allow 20 minutes up here.
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