Quick tips about Indonesia
Official Currency: Indonesian rupiah (IDR). Most establishments accept cash only especially smaller restaurants and stores. But don’t leave your credit card at home!
Electricity: The standard voltage is 230V. The power socket is type C, and F. Check here to determine if you need to bring a travel adapter.
Data and Wifi: Get cheap prepaid SIM card at the airport or local retail stores in tourist areas. Bring your identification to register. Free wifi is available at most places if you decide not to get a SIM card.