Visitor Visa lets you visit Australia for up to 3, 6 or 12 months.
There are a few streams:
If you are in Australia with a Visitor Visa or Working Holiday visa, you can only extend your stay so the total duration is 12 months or less.
If you are applying for the Frequent Traveller stream, applicants may be granted for up to 10 years.
If you are applying for Parents Visa, the visa may be granted from 18 months to 5 years.
From AUD $140 onwards.
From 2 days up till 51 days.