Cambodia operates on a highly unique dual-currency economy. Both the US Dollar (USD) and the Cambodian Riel (KHR) are used interchangeably everywhere.

ATMs dispense US Dollars, and major prices (hotels, tours, large restaurant bills) are quoted in USD. However, change for anything under $1 or $5 is almost always given back to you in Cambodian Riel. Important Note: Ensure any US dollar bills you bring are crisp and completely untorn; merchants and banks will strictly reject bills with even tiny rips, marks, or deep creases.

Visiting Angkor Wat is the highlight of any Cambodian trip, but it requires preparation. You must purchase an official Angkor Pass (available for 1, 3, or 7 days). Because the archaeological park is massive, hire a dedicated tuk-tuk driver for the day through your hotel.

Dress Code: As this is an active, highly sacred religious site, the dress code is strictly enforced. Shoulders and knees must be covered for both men and women. Guards will deny entry to visitors wearing tank tops or short shorts, even if you try to wrap a scarf around yourself.

The traditional *remorque* (a carriage pulled by a motorbike) and the modern three-wheeled auto-rickshaw are the primary modes of transport in Cambodian cities. To completely avoid the hassle of street haggling over fares, immediately download ride-hailing apps like PassApp or Grab to your smartphone. They provide fixed, incredibly cheap fares for tuk-tuks directly from your phone.