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Yes, the “Cambodia e-Arrival” (CeA) application is now mandatory for all foreign travelers entering via major airports. It consolidates the immigration form, customs declaration, and health usage into a single QR code. You must complete this free digital form within 7 days of your arrival—paper forms are largely phased out and only available as a backup. Download the official app or use the government website before you fly to avoid awkward delays at immigration counters in Phnom Penh or Siem Reap.

It is becoming increasingly difficult to use small US denominations ($1, $5) as the National Bank pushes to de-dollarize the economy. Many shops, especially in Phnom Penh and Siem Reap, will now only accept Cambodian Riel (KHR) for transactions under $10 or give change exclusively in Riel. While $10, $20, and $100 bills are still widely accepted for larger purchases, you should rely on Riel for tuk-tuks, markets, and convenience stores. Don’t bring stacks of $1 bills from home—exchange some Euros directly into Riel or withdraw mixed currency at ATMs.

Cambodian merchants are notoriously strict about the condition of US currency—even a tiny tear, ink mark, or heavy crease will cause rejection. Bills must be crisp, pristine, and newer than 2009 (avoid the “small head” portraits). This isn’t just fussiness; local banks penalize merchants for depositing damaged foreign currency, so they pass that strictness on to you. Inspect every bill you receive as change immediately, and if it’s damaged, politely ask for a different one or accept Riel instead.

The E-visa (Tourist T-class) is far superior for eliminating stress and saving time at the airport. While Visa on Arrival is available for $30 USD, the lines can be chaotic, and you may face “unofficial” extra fee requests or scrutiny if you don’t have a passport photo. The E-visa costs slightly more ($36 USD total) but lets you walk straight to the immigration counter. Apply online 3-4 days before your trip and print two copies of the certificate—one for entry and one for departure.

The “Angkor Code of Conduct” strictly enforces modest dress: shoulders and knees must be covered for both men and women. Guards will deny you entry to the upper levels of temples (Bakan tower) if you are wearing tank tops, short skirts, or shorts above the knee. A simple scarf draped over shoulders is often not accepted; you need to wear a t-shirt or blouse. Light, breathable long pants or a long skirt are your best options to stay cool while respecting the sacred nature of the site.

Malaria risk is very low in major tourist hubs like Siem Reap (Angkor Wat) and Phnom Penh, so most travelers skip prophylaxis for standard itineraries. However, Dengue fever is a real and common risk year-round, carried by day-biting mosquitoes. Your primary defense should be rigorous use of DEET-based repellent, wearing long sleeves at dawn/dusk, and staying in rooms with screens or AC. Consult a travel doctor 6 weeks prior, especially if you plan to trek into rural jungle provinces like Mondulkiri or Ratanakiri where malaria is present.

Strictly no—flying drones over the Angkor Archaeological Park is prohibited without a difficult-to-obtain permit from the Apsara Authority. Authorities confiscate drones caught flying illegally and may impose heavy fines. While enforcement is looser in remote countryside areas, flying in Phnom Penh is also banned (especially near the Royal Palace). Unless you are a professional production crew with weeks to process paperwork, leave the drone at home and enjoy the temples from the ground.

We use AI to monitor pricing across 150+ airlines 24/7, detecting temporary drops that occur due to algorithm adjustments or new route capacity. For example, a standard fare from Frankfurt to Phnom Penh might be €1,100, but our system can catch a sudden drop to €650 on a premium carrier like Qatar Airways. These deals are manually verified by our team to ensure they have good layovers and are real bookable tickets. Since these drops often last only 3-7 days, we alert our free newsletter subscribers immediately so they can book directly with the airline before the price corrects.