I have an Australian Driver’s License. Would this be sufficient without my having to apply for an international one?

Yes, so long as the driver produces a valid driving license from their country, it will be valid. However, kindly note the following requirements for being able to drive our rental cars:The driver’s license must be at least 3 years old according to the driver’s age and driving license issue date.
The driver’s license must be written in English or Latin alphabet.