A set of barracks, known as East Arrow Barracks were constructed on a terrace between Hudson’s and East Demi Bastions, on the south eastern side of the castle complex, in the 1930’s. The barracks comprised three two storey blocks with pedestrian access from here to the castle via East-Demi Passage. These barracks were demolished after the military occupation of the castle ceased in the 1960’s. (location accurate to the nearest 1m based on available information)