First geography check: Bare Island is not in Sydney Harbour. It is a low sandstone islet off the La Perouse headland on the northern shore of Botany Bay, linked to the mainland by a timber bridge — even though the blog’s harbour-islands title pattern put “Port Jackson” in the URL. Captain Cook’s 1770 journal noted “a small bare island” here as a navigational marker, and the English name stuck. The wider headland is part of the Gooriwal cultural landscape, with deep continuing connections for the La Perouse Aboriginal community (including Gweagal and Kameygal associations at European contact) to land and sea for food, work and recreation.
In the 1880s, colonial nerves about foreign naval attack fortified the rock. The fort was designed under imperial defence advice from Sir Peter Scratchley (with Gustave Morell) for the NSW Department of Public Works; Colonial Architect James Barnet is also associated with the works. Construction ran through the 1880s (commonly summarised 1881–1889). Decommissioned in the early twentieth century, from 1912 the fort served for decades as a war veterans’ home, with brief military reuse in the Second World War period.
Bare Island Fort is State Heritage listed and managed inside Kamay Botany Bay National Park / the La Perouse headland precinct by NPWS. It matters both as a near-intact late-nineteenth-century coastal defence work and as part of the living Aboriginal cultural landscape of La Perouse. Guided tours and headland walks are the usual way in — not a Port Jackson ferry hop.
Bare Island fort, La Perouse, Botany Bay.