Tourist Visa for Australia: Electronic Travel Authority (subclass 601)
The ETA or Electronic Travel Authority is a visa that lets you visit Australia as many times as you want, for up to a year, and stay up to three months for each visit, to visit or for business visitor purposes.
You might be able to get an Electronic Travel Authority if you are outside Australia and a passport holder of a certain country.
Eligible Countries for ETA 601 Visa
ETA eligible passports are citizen passports issued by the following countries (at April 2017):
Hong Kong (SAR of China)
Republic of San Marino
United Kingdom—British Citizen
United Kingdom—British National (Overseas)
Cost of Electronic Travel Authority (subclass 601)
If eligible to apply for online applications, you will need to pay a service fee of $20.00
Visa processing times for ETA 601
Average processing time for this visa is less than one day