Spectacle Island is an island in Sydney Harbour, Australia. It lies in the main channel of the western section of the harbour, upstream of the Harbour Bridge, adjacent to the Sydney suburb of Drummoyne.
Dating from 1865, the island is historically significant as it is the oldest naval explosives manufacturing and storage complex in Australia. Originally built to store government gunpowder, the island was converted to store naval munitions in 1893, for which purpose it hosts storesheds, jettys and an internal railway system. The island has been significantly increased in size by the use of waste from the nearby Balmain Colliery.
Spectacle Island is a island located in Australia's Hawkesbury River near its junction with Mooney Mooney Creek, to the north of Sydney, New South Wales. It is within the bounded locality of Mooney Mooney.
The island was originally known as 'Goat Island', named after a herd of goats that were once kept on the island. Apparently other domesticated animals were also marooned here, as there is one report of an omnivorous cow consuming two flathead that it had pulled down from a tree where the fisherman had left them to dry, probably in order to supplement the meagre amount of pasture that was available.
The name of the island was subsequently changed to Spectacle, although the reason is unclear. It may have been due to the spectacular view from its summit, or maybe due to its resemblance to a monocle.
The island was designated a nature reserve in 1972 and was listed on the Register of the National Estate in 1978 for its scientific importance as a remnant of the natural environment of Sydney, for the abundance of aboriginal sites it contains, and particularly diverse vegetation. It is managed by the NSW National Parks and Wildlife Service.
Spectacle Island was included on the Australian National Heritage List in December 2006.