Do I need US dollars or Cambodian Riel?

Both are used interchangeably. Carry small US dollar bills for large purchases and expect Riel back as change for small transactions.

Is it safe to drink the tap water?

No. Stick to bottled or filtered water provided by your hotel.

24 Hours in Siem Reap: A Focused Itinerary

Spend your 24 hours focusing on the Angkor Archaeological Park at sunrise and exploring the local markets by evening. Hire a private tuk-tuk driver for the entire day to maximize your time between temple complexes.

Hire a driver in advance. Don't negotiate on the street. Message a reputable tuk-tuk driver on WhatsApp or through your accommodation 24 hours before you arrive. Expect to pay $20–$25 for a full-day temple circuit.
Buy your temple pass online. Go to the official Angkor Enterprise website to purchase your 1-day pass ($37). Print it out or have the QR code ready on your phone so you don't waste time at the ticket office at 4:30 AM.
Start at Angkor Wat for sunrise. Leave your hotel by 4:30 AM. Arrive at the gates by 5:00 AM to secure a spot at the edge of the reflecting pond for the iconic sunrise view.
Beat the heat with a midday break. Visit Bayon and Ta Prohm before 11:00 AM. Return to your hotel for a shower and a nap during the peak heat of 1:00 PM to 3:00 PM.

Do I need US dollars or Cambodian Riel?: Both are used interchangeably. Carry small US dollar bills for large purchases and expect Riel back as change for small transactions.
Is it safe to drink the tap water?: No. Stick to bottled or filtered water provided by your hotel.