World War 2, Western Australia, Point Peron, K Heavy Battery, 1943

The Peron Battery, at Cape Peron, was the southernmost of the Fremantle Fortress coastal defence batteries in Western Australia. Also referred to as K Heavy Battery, it was established in January 1943 and, like the Challenger Battery on near-by Garden Island, it was equipped with two mobile 155 mm guns. Additionally, it also operated two 18-pounder guns which were withdrawn once the Collie Secondary Battery became operational on Garden Island. The duty of the main guns was to cover the southern access to Cockburn Sound while the 18-pounder guns protected the a boom net which spanned between Cape Peron and Garden Island. The main battery was withdrawn again in December 1944 but the observation post and one of the Panama mounts of the Peron Battery are still preserved and accessible.