Garden Island, Naval base on Sydney Harbour island, Australia
Garden Island is an island in Port Jackson near Sydney's center that serves as a naval base with wharves and dockyards. The Captain Cook Graving Dock can hold large warships and functions as a primary repair facility for the Australian Navy.
The island received its name in 1788 when HMS Sirius crew members planted a kitchen garden and carved inscriptions into sandstone. These markings rank among Australia's oldest colonial records from this era.
The Cadigal people called this land Ba-ing-hoe and lived here for thousands of years before colonization. The water and coves still shape how the place looks and how it is used today, though the focus has shifted to military purposes.
Access to the island is limited since it functions as an active naval facility and is not open to the general public. Visitors should check whether special tours or permission are available to view the site.
A network of military tunnels runs beneath the island, built during World War II to generate power and store equipment. These underground spaces represent a hidden chapter of the site's wartime history.
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