Travellers who do not acquire approval prior to check-in might be denied boarding. Visas The sort of visa you'll want to study in Australia is going to be determined by the length of time your course is. If you're granted a visa, you'll be sent a notification letter that you need to take with you once you travel. It's possible to then attempt to put in an application for a visa if you satisfy the crucial ailments. The visa has to be current and valid.