Travel Guide

Flying to Cambodia and from Vietnam

This event is subject to a minimum of 50 registered attendees and may be cancelled if this minimum is not reached. Do not purchase any flights or other travel until the event is confirmed. Please note – if flights are booked prior to EO confirming the event, EO will not refund travel costs.

All the attendees of the 2020 EO Cambodia-Vietnam Exploration should book their arrival flight to Siem Reap International (REP) Airport in Cambodia to start the Exploration and book their departure flight from Da Nang International Airport (DAD) in Vietnam after the completion of the Exploration.

You will need to arrange your own ground transportation to/from the airports as you arrive and depart for the Exploration. EO will share airport transfer options several months in advance for you to book on your own. Plan to arrive in Siem Reap by the morning of 19 February 2020 and depart from Da Nang any time after the morning of 24 February. Air and ground transportation during the program days to/from the venues and various locations within Cambodia and Vietnam are included in your registration and will be booked by EO, only your initial arrival and final departing flight/ground transportation will need to be booked on your own.

Time Zone

ICT (Indochina Time) UTC/GMT +7 hours (the same in both countries)
Please check to determine what time it is in your home city.


English is the official language of the 2020 EO Cambodia-Vietnam Exploration.


Cambodian currency is known as the Cambodian Riel (KHR) and Vietnamese currency is known as the Vietnamese Dong (VND). US dollars are also a common method of payment in both countries, although more prevalent in Cambodia. Credit cards are generally accepted in larger cities, but cash is preferred, especially in Cambodia. Visa, MasterCard and American Express are widely accepted.

For currency converter tools, please visit or


Tipping is not compulsory but is always appreciated. Many restaurants and hotels will add 5-10% service charge on top of your bill. Small tips to porters, taxi drivers, guides are common practice.


The electrical current in Cambodia is 230 Volts and 50 Hertz. In Cambodia, the power sockets used are type A, C and G (see images below).

type a c and g outlets

The electrical current in Vietnam is 110/220 Volts and 50 Hertz. In Vietnam, the power sockets used are type A, C and D (see images below).

type a c and d outlets

Stay Connected

The country code in Cambodia is +855 and in Vietnam is +84. When dialing a Cambodian or Vietnamese number from abroad, be sure to dial +001 before the area code and number.

These are the emergency numbers in Cambodia:

Fire 012-784464
Hospital 063-761888
Tourist police 012-402424

These are the emergency numbers in Vietnam:

Ambulance 115
Fire 114
Police 113

Please contact your individual mobile phone service provider for information about international plans. Call your service provider before arriving to determine if you should purchase an international roaming plan. International roaming charges are very expensive in Southeast Asia, so please plan for this in advance.


Southeast Asia is a tropical destination with warm, sometimes muggy weather. February is the ideal time to visit all of our locations, avoiding the extreme heat of Siem Reap and hitting the dry season in Hoi An. The average temperatures range from 80-92°F / 25-30°C during the day and 70-78°F / 20-25°C at night. Hoi An will be slightly cooler than the other destinations by about 5-6°F / 2-3°C.


In general, the Exploration will be casual during the day and casual chic in the evenings. You will likely be active during the day, so plan on lighter fabrics and comfortable shoes. Bring layers to ensure proper cover for the temple visits. The dress code for temple visits including Angkor Wat and the Return to Temples requires shoulders and knees to be covered.


To enter Cambodia and Vietnam, you’ll need a passport that is valid at least six (6) months after the date of travel. Visas can be obtained at the appropriate Cambodian or Vietnamese embassy or, depending on country of origin, visas can now be purchased on-line and in advance at this website: for Cambodia and for Vietnam. Some countries of origin may be required to obtain their visas in advance. EO highly recommends that you arrange your visas in advance of travel in order to make the group entry into Vietnam as smooth and seamless as possible.

EO members are responsible for arranging their own travel in a timely manner – including, but not limited to, all immigration – and visa – related costs and paperwork. If you fail to receive the appropriate approvals to enter both Cambodia and Vietnam after you have purchased a registration, you will be subject to EO cancellation policies.

EO takes no responsibility for acquiring or monitoring the status of a visa for any member. EO can support you in your quest for immigration approval by providing the following:

  • Letters of invitation
  • Hotel confirmation numbers (where applicable)
  • Connections to chapter members via the Chapter Admin

EO cannot:

  • Sponsor members
  • Guarantee costs or other monetary-related paperwork
  • Liaise with ministries, immigration, embassies or consulates on behalf of any member

If you require a sponsorship for entry into Cambodia or Vietnam, you assume all risk associated with registering for the Exploration prior to getting approval and finding sponsors. EO cancellation policies apply. EO members are required to find other EO member sponsors on their own, including using or through the EO chapter hosting the event. EO staff will not broker sponsorships.


No vaccinations are required to enter Cambodia or Vietnam. It is recommended to consult with your local physician for up-to-date information on vaccinations. While at this time there is no risk of yellow fever in Cambodia or Vietnam, the government requires proof of yellow fever vaccination if you are traveling from a country with risk of yellow fever, this does not include the US – for complete list, see Countries with risk of yellow fever virus (YFV) transmission.

Zika is currently a risk in both Cambodia and Vietnam. Zika infection during pregnancy can cause serious birth defects. Therefore, pregnant women should not travel to Cambodia or Vietnam. Partners of pregnant women and couples planning pregnancy should know the possible risks to pregnancy and take preventive steps.

Make sure you are up-to-date on routine vaccines before every trip. These vaccines include measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, and your yearly flu shot.

You can find more health and safety recommendations from the Centers for Disease Control (CDC) for Cambodia and for Vietnam.

Dietary Restrictions

Please notify us of any dietary restrictions during registration so that your needs are accommodated at the Exploration. To edit any dietary restrictions or input new dietary restrictions, go to the event page and click “Modify registration.” You will be able to edit or enter dietary information and click “Save.” If you suffer from severe food allergies, we encourage you to visit this website and consider purchasing food and travel-translation cards to effectively communicate your needs while traveling.