Do Australia passport holders need a visa to visit Canada?

Australian passport holders need an Electronic Travel Authorization (eTA) to fly to Canada for tourism, not a visa. It costs CAD 7, is valid up to 5 years, and allows stays of up to 6 months. Australia is a visa-exempt country for Canada. An ordinary Australian passport holder visiting Canada for tourism does not need a visitor visa, but must obtain an electronic Travel Authorization (eTA) before boarding a flight to or transiting through a Canadian airport. The eTA is applied for online, costs CAD 7, and is usually approved within minutes (though it can take several days). It is electronically linked to your passport and remains valid for up to 5 years or until the passport expires, whichever comes first. With a valid eTA you can make multiple trips, normally staying up to 6 months per visit at the discretion of a border services officer. Note the eTA is required only for air travel; travellers arriving by land or sea (car, bus, train, boat/cruise) do not need an eTA, though they still need a valid passport. An eTA does not guarantee entry; the final decision rests with the border officer on arrival.