20/10/1996 Hoxa Head had two WW2 emergence batteries, Hoxa and Balfour. Hoxa was deployed to cover the inner boom defences between Hoxa Head and Flotta. Balfour had a wider range over the Pentland Firth. Also remains of WW1 coastal battery at this site and of ancilliary buildings.
07/1997 Document records give the armament of Hoxa as: 2 x 6in guns and 2 x coast artillery search lights. On 7 April 1941 was manned by 208 Bty of 533 Reg Coast Artillery. By 10 November 1943 the battery was under care and maintenance. See reference s. 1993 This WWII battery overlies a WWI 6-inch emplacement.
During the Second World War this battery continued using this calibre of gun and was reduced to care and maintenance in 1943. The magazines, observation post, engine room and searchlight platforms can still be seen. The steel supporting the overhead cover is badly rusted and is likely to collapse soon.
WO/192/263 PRO.