For American, Australian, and United Kingdom's citizens, there is no visa exemption for stays in Vietnam. You will need to apply for a visa before their trip. An e-visa is recommended, which can be easily requested online on the Vietnamese Immigration website.
You can obtain a visa on arrival at international airports (Phnom Penh/Siem Reap) or at border ports, including the one on the Mekong River during a boat transfer from southern Vietnam to Phnom Penh. Our agency assists you with all the visa application procedures when booking your trip. 

Yes, it is possible to start the trip in Cambodia (in Phnom Penh or Siem Reap) and finish it in Vietnam (in Hanoi or Ho Chi Minh City). Our travel advisor will tailor the itinerary to your request.

From Vietnam, you can travel to Cambodia either by air (a one-hour direct flight from Hanoi/Ho Chi Minh City/Da Nang to Siem Reap/Phnom Penh) or by river (taking a boat up the Mekong River from the southernmost part of Vietnam to Phnom Penh). It is also possible to reach Cambodia by land, but the journey is quite long and tiring.

A panoramic tour of both countries will take you at least 15 days. With a few more days or an additional week, you can explore Vietnam more deeply by discovering its authentic northern mountains or relaxing on one of its beautiful beaches (Hoi An, Nha Trang, Phu Quoc). Alternatively, you can enjoy a beach in Cambodia (in Sihanoukville and its offshore islands).

Vietnam has a varied climate from north to south due to its diverse topographies and the length of the country (2000 km from north to south). When one region is humid, cold, or rainy, another may be pleasantly sunny. Based on our experience, the best time to visit Vietnam is from October to April. During this period, the best months are October to November and mid-March to May. These are the times when the climate remains pleasant and, moreover, they are the least rainy months of the year in Vietnam. For the months of July and August, it is a bit hot (30-35 degrees), but Halong Bay is usually sunny. You will also have the chance to see the region colored by green or yellow rice terraces stretching as far as the eye can see. As for the south, although it is the rainy season, the rain will not last all day but only one or two hours per day. The rest of the day is sunny. The climate in Cambodia is quite similar to that in southern Vietnam.

If you already have an idea about the time of your trip (winter, summer...), please let us know, and we can guide you on the most favorable months.