I’m Australian and want to go to Iran.
Are you aware of any issues getting the Visa on arrival? Do they randomly reject people like the embassies used to?
Is the visa on arrival for 15 or 30 days?
It is highly recommended to apply for your visa beforehand. You can select the IKA or other international airports as the place of your visa collection. So you can make sure the visa is granted and it can be for up to 30 days.
Check the ultimate guide to Iran visa to get familiar with all the requirements and details.