Biarritz Aquarium, also known as le Musée de la Mer, is an aquarium in Biarritz. The building, in art deco style, was opened in 1933. It went through the first renovation in 1992 to add an important collection of marine animals. An extension was added between 2009 and 2011 which doubled the visiting area and added more tanks, at the expense of space for birds.