A historical coastal artillery battery position located near the coordinates provided on the southeastern coast of Spain. The name 'Batería de Santa Ana Complementaria' indicates it was a complementary or secondary battery, likely part of a larger coastal defense system. Based on Spanish military fortification nomenclature, such batteries were commonly constructed in the 19th or early 20th century to protect strategic coastal areas.
The specific historical context, armament, and construction details for this particular site are not confirmed by the available web search results. The region has a long history of coastal defense due to its strategic Mediterranean location.