Between the wars, Larros is an important fishing boats that weapon for the sardine fishery, abundant in the Bay of Biscay.
Several canneries then settled in the vicinity of ports gujanais.Les sardines, moving to Spain and Morocco, gradually close the factories.
Wearing Larros is also a site recognized shipbuilding and all kinds of boats were being built: pinasses oyster, sardine, pinassottes ...
Today, the shipyard COUACH is the first French manufacturer of yachts. This high-tech twenty-first century still rubs on the port, the shipyard Dubourdieu, virtuoso of the traditional construction which brings to life the pinnaces and other traditional boats.
With the Oyster House, its oyster huts for tasting, wearing Larros is now a popular tourist site.