There is one town or suburb in Garden Island with an elevation of 4-10 metres above sea level
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Garden Island (known as Meandup to the local Noongar people) is a narrow island about 10 kilometres (6 mi) long and 1.5 kilometres (0.9 mi) wide, lying about 5 kilometres (3 mi) off the Western Australian coast, to which it is linked by an artificial causeway and bridge.