Regional Australia is a definition of the Australian Government designed to promote some areas of the country, especially for immigration. People who work in these areas can be granted extra points when applying for a resident visa. Working there while holding a working holiday visa may allow the person to have their visa renewed.
According to the Australian Department of Immigration and Border Protection, all of Australia outside of Melbourne, Sydney, Brisbane, Wollongong, Newcastle and the Gold Coast is considered to be "rural and regional Australia".