The Magazine Buildings were the premier storage facility for merchants' explosives between 1915 and 1974. During this time, the carefully constructed building where crucial for the safe storage of explosives used for building public works such as the Sydney Harbour Bridge, and additionally used by the Australian Navy during World War II. There is currently no public access to the site, and the buildings are best viewed from across the water at Bantry Bay Picnic Area, or anywhere on the other side of Bantry Bay.