Macarthur is a region in south-west Sydney that has a population of over 300,000 residents. It is home to many new suburbs and housing estates that have popped up in recent decades, like Oran Park, Gregory Hills, Picton and Macquarie Links. This area of Sydney is generally considered as the place where city meets country, as well as rural and regional New South Wales. Campbelltown and Camden were previously rural towns that formed a central hub of urbanised communities after the ‘Three Cities Structure Plan’ was brought into action in 1973. The region is also home to a number of botanical gardens and lush parklands and estates, like Mount Annan Botanic Gardens, Camden Park Estate and Wirrimbirra Sanctuary in Bargo.