When entering Australia, the customs requires to bring more than 1 10,000 yuan (inclusive) of Australian dollars and equivalent foreign currency, and must declare it. Those who carry promissory notes, traveler's checks, personal checks and money orders must also fill in the BNI as required and truthfully declare it. Otherwise, you may be fined or prosecuted.

In fact, it is more convenient to swipe your card abroad, and generally you don't need to bring too much cash.