Currency : The Cambodian Riel (USD $1 =~4000R)
Climtes: All seasons are suitable for travel, however, the beginning of the year is ideal. December-February, cool/dry; March-May, hot/dry: June-August, hot/rain; September-November, cool/diminishing rain.
Peoples and ethnic groups: 90-95% Khmer, 5% Vietnamese and Chinese, Chams, and several ethnic minorities in the northeast.
Populations: about 15millions
Religion: Theravada Buddhism, Islam (Chams), Christianity, Animism
Languages : Khmer (Cambodian), French and English.
Formalities : A passport valid for at least 6 months after your return date. A valid visa at least 1 month at the embassy, but more conveniently on arrival at the international airports: Siem Reap or Phnom Penh and at border crossings with Thailand, Vietnam, and Laos. Tourists visa: $25 USD--Business visa: $30 USD.
Time difference : GTM +7 hours
Main activities : Rubber, textile, rice plantation, tourism.
Transport : transport in the country is fairly rudimentary. The taxi is safe and simple. In town, opt for motorcycle taxis or tuk-tuks will take you couple USD on average. Bus and boat are available and inexpensive means:
Health: No vaccinations mandatory is required to enter Cambodia from Europe but still check that you are up to date for your vaccines.
Water : Do NOT drink the tap water. A priori, any ice has treated water but remain cautious, as for vegetables and fruit peeled. Check if the bottled water (purified) which are encapsulated offers.
Food: As in any tropical country, of course, there are risks. So be cautious about fruits and vegetables peeled. In case of intestinal disorders, avoid street vendors and look for sanitized restaurants.
Nature: The sun is strong in Cambodia, especially Angkor area cover your head, wear loose clothing and do not forget your sunscreen. Drink plenty of purified bottled waters.
To avoid any unpleasant surprises being bitten by poisonous insects, better avoid walking off the beaten track.