Always easy to change a little bit before you come over so you have some on you. Otherwise plenty of ATMs in the arrivals halls of both Bali or Jakarta airports when you first arrive. In Yogya, you can change money at lots of the big hotels and banks. Exchange rates here and in Australia for currency conversions are about the same. Any currency exchange must be handled by participants themselves. ACICIS staff will not provide a currency exchange service. Please note that passports may need to be presented when changing money and cashing traveller’s cheques. It is also a good idea to check the current exchange rates before exchanging money. Ensure that you are given the correct amount of currency before leaving the counter. Short changing of unsuspecting victims can happen.