If you're planning to visit Australia for tourism or to visit family and friends, you'll need to apply for a Visitor Visa (subclass 600), unless you're from an eligible country that is part of the Electronic Travel Authority (ETA) or eVisitor program. Here are the key points about the Australia Visitor Visa:

Purpose: The Visitor Visa (subclass 600) is for individuals who wish to visit Australia for tourism, visiting family or friends, or for other short-term non-work purposes.

Application Process: You can apply for the Visitor Visa online through the Australian Government's Department of Home Affairs website or in person at an Australian visa office. The application process involves filling out forms, providing supporting documents (such as proof of funds, travel itinerary, health insurance, etc.), and paying the required fees.

Eligibility: To be eligible for the Visitor Visa, you must satisfy the immigration officer that you genuinely intend to visit Australia for the stated purpose and that you will abide by the conditions of your visa, including leaving Australia before your visa expires. You may also need to meet health and character requirements.

Duration: Visitor Visas can be granted for various durations depending on your circumstances. Typically, they can range from 3 months to 12 months.

Multiple Entry: Visitor Visas can be granted for single or multiple entries. If granted a multiple-entry visa, you can enter and leave Australia multiple times within the validity period of your visa.

Work Limitations: Visitor Visas generally do not allow you to work in Australia. If you wish to work during your visit, you may need to apply for a different visa.

No Further Stay Condition: Some Visitor Visas may have a 'No Further Stay' condition attached, which means you cannot apply for another visa while you are in Australia. Make sure to check your visa conditions carefully.

Electronic Travel Authority (ETA) and eVisitor: Citizens of certain countries are eligible for an ETA or eVisitor, which allows them to visit Australia for tourism or business purposes for up to 3 months at a time. These visas can be applied for online and are electronically linked to your passport. Always refer to the official website of the Australian Government's Department of Home Affairs for the most accurate and up-to-date information on visa requirements and application processes.