Garden Island, SA, 5015, located approximately 11 kilometers northwest of Adelaide, is a unique and largely uninhabited suburb. It is notable for its strategic significance as the site of the RAN (Royal Australian Navy) base, HMAS Stirling, the largest naval base in Australia. The island is connected to the mainland by a causeway and is primarily used for military and naval purposes, with restricted public access to most areas. Despite its industrial and military focus, Garden Island is surrounded by picturesque natural landscapes, including pristine beaches and clear waters, making it a haven for marine life and a point of interest for those interested in naval history and coastal environments.
| Postcode: | 5015 |
| State: | SA |
| Coordinates (lat/long): | -34.840209, 138.496803 |
| Federal Electorate: | Hindmarsh |