The World's Largest Park?
The park new park will stretch "27km from Blacktown to Liverpool along Eastern Creek and the hills of Hoxton Park, taking in 5,500 hectares.
...[T]he population of Sydney's western suburbs would balloon to 2.2 million by 2020 and the park would allow those people access to more recreational activities.
[T]he parkland would be within 20 minutes' drive from any part of Western Sydney, and the 'only growth' that would occur would be that of trees."
Thanks to Chris Steins