The location of the lighthouse is motivated by the need to complete the lighting of the coast and the danger of the islands themselves by confusing them with the coast, as well as illuminating the wide coastal arc between A Coruña and Finisterre, together with Cape Villan.
The projected was realized by the engineer Celedonio Uribe endowing to the lighthouse of an apparatus of fourth order with a range of 10 miles. It began to work in June of 1853.
The expansion and reform carried out in 1915 was carried out by Salvador López Miño and provided the new lighthouse of a second order device with a range of 23 miles. The last modernization was in the year 1984 being its facilities partially automated.
Curiosities, myths and legends
The Galician islands that are still in private hands can be counted on the fingers of one hand. The large Sisarga, the small Sisarga and Malante are among them. They belong to the heirs of the Count of Altamira and Luz de Mora y Aragón, although they are in negotiations with the administration to be able to integrate them in the national park of the Atlantic Islands. Although uninhabited constitute a paradise for colonies of some species of birds in danger of extinction and their barnacles, they say, are better than the Roncudo.
