Small fishing museum located in San Carlos castle, one of the defensive bastions of the Costa da Morte which were built in the 18th century to protect against the English and French corsairs. Nowadays, it houses an exhibition space related to fishing equipment in Galicia. The exhibition is made up of explanatory panels on the traditional boats, whale fishing, shipwrecks and all kinds of marine utensils. Interesting visits are also made to the fish market for groups.