Garden Island (Western Australia)
Overview
 
Garden Island is a slender island about ten kilometres long and one and a half kilometres wide, lying about 5 kilometres (3.1 mi) off the Western Australia
Western Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...

n coast, to which it is now linked by a man-made causeway.

Like Rottnest Island
Rottnest Island
Rottnest Island is located off the coast of Western Australia, near Fremantle. It is called Wadjemup by the Noongar people, meaning "place across the water". The island is long, and at its widest point with a total land area of . It is classified as an A Class Reserve and is managed by the...

 and Carnac Island
Carnac Island
Carnac Island is a 19 ha, A Class, island nature reserve about 10 km south-west of Fremantle in Western Australia.-History:In 1803, French explorer Louis de Freycinet, captain of the Casuarina, named the island Île Pelée . It was also known as Île Lévilian and later Île Berthelot...

, it is a limestone outcrop covered by a thin layer of sand accumulated during an era of lowered sea levels. The Noongar
Noongar
The Noongar are an indigenous Australian people who live in the south-west corner of Western Australia from Geraldton on the west coast to Esperance on the south coast...

 Indigenous Australians
Indigenous Australians
Indigenous Australians are the original inhabitants of the Australian continent and nearby islands. The Aboriginal Indigenous Australians migrated from the Indian continent around 75,000 to 100,000 years ago....

 tell of walking to these islands in their Dreamtime
Dreamtime
In the animist framework of Australian Aboriginal mythology, The Dreaming is a sacred era in which ancestral Totemic Spirit Beings formed The Creation.-The Dreaming of the Aboriginal times:...

.

At the end of the last ice age, the sea level rose, cutting the island off from the mainland.
 
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