Are Traveler's Checks Accepted in Bali?
Traveler’s Checks are a somewhat antiquated system, and you will find it inconvenient to cash them in Bali. If you do have Traveler’s Checks, be sure that they are American Express and attempt to cash them at a major bank such as BCA. Authorized money changers will also accept them. It is better to use credit or debit cards, or prepaid debit cards, than to use traveler’s checks.
There are often fees for cashing traveler’s checks, and you may not receive a favorable currency exchange rate. You’ll need your passport as ID to cash a traveler’s check. Bali has plenty of ATMs for debit card withdrawals if you need cash.