Before you begin your trip, check the visa requirements. All travellers to Australia need a valid passport and everyone, except travellers with Australian or New Zealand passports, require an Electronic Travel Authority (ETA) or visa to enter Australia. You must hold an ETA or visa before travelling to Australia.
An ETA is equivalent to a visa, but there is no stamp or label in your passport and there is no need for you to visit an Australian Visa Office to submit an application. ETAs are issued for short stay tourists and short stay business travellers to Australia. All other travellers, including working holidaymakers, students and long stay tourists must carry a visa.
To make it easy for you the Australian Government has made it possible to arrange for an ETA and a number of e-visas via the internet - no application forms and no contact with an Australian Visa Office is necessary.