This place, also known as C-1, is a support fort for the coastal artillery of Cabo Tiñoso. Its construction dates from between 1933 and 1936, in what was a project to generate a defensive belt for the city of Cartagena, through the artillery plan of 1926 and in the context of the dictatorship of Primo de Rivera.
Its main function was to protect the entrance to the bay of Cartagena. The Castillitos Battery had two British coastal guns manufactured by Vickers-Armstrong, capable of firing a one-ton projectile at a distance of up to 35 kilometres—armaments that are still present in Castillitos. These guns fired their only attack shot in 1937 against a submarine that was sailing on the surface of the sea.
As for location, it is situated at a height of 250 meters above sea level. It has a historicist architectural style with traces of eclecticism and modernism, and its facade was built in the style of a medieval castle.
The Castillitos Battery was restored in 2010 and 2011, and today it still belongs to the Ministry of Defence.
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