Work & Holiday visa (subclass 462)
The Work and Holiday visa is for tertiary educated people aged at least 18 but not yet 31 years of age who want to travel and work for up to 12 months in Australia. This visa allows you to supplement the cost of your holiday through periods of temporary or casual employment.
Most countries under this visa program have a limit on the number of Work and Holiday visas issued per year.
Resident Return visa (subclasses 155 and 157)
For current or former Australian permanent residents, or former Australian citizens to travel overseas and return as permanent residents.
Further information can be found here on the department's website.