When to go
The ideal months to be in Cambodia are December and January, when humidity is bearable and it's unlikely to rain. From February, it starts getting pretty hot, with April being unbearably so. The rainy season (from April to October) is very wet, but can be a good time to visit Angkor, where the boats will be full and the mountains lush.

Getting There
There are direct flights to Phnom Penh from Bangkok, Ho Chi Minh City, Guangzhou, Hong Kong, Kuala Lumpur and Singapore. Airlines operating into Phnom Penh are Thai Airways International, Royal Air Cambodge, Lao Aviation, Vietnam Airlines, Dragonair, Malaysian Airlines and Silk Air. There is an airport tax of USD15 for international flights, USD4 for domestic flights and USD5 from Siem Reap. There is a land connection from Ho Chi Minh City to Phnom Penh, via the Moc Bai border crossing: buses take five to six hours. It is also possible to rent both a car and driver in Vietnam for trips into Cambodia. Passenger ferries link the Vietnamese port of Chau Doc in the Mekong Delta with Phnom Penh.

Cambodia has a limited road network, most of which is deteriorating badly. The rail system, which has suffered frequent sabotage, is off limits to foreigners. In contrast, there are some 1,900 km of navigatable waterways, and Phnom Penh, which is 320km from the mouth of the Mekong, is accessible by boat. Buses serve Phnom Penh�s suburbs. Cyclos are a cheap form of transport and motorbikes and bicycles are available for hire. Beware of Cambodians reckless driving habits and take extra care when roaming the city.

Visa
A 30-day tourist visa costs US$20 while you can get a 3-month visa for US$40. 2 passport-sized photographs are required. Word has it that visas are granted upon arrival at Pochentong International Airport, Phnom Penh or Siem Reap, Angkor, but it's best to check the current situation with your local Cambodian embassy or consulate office before traveling. If you enter the country by land (e.g. from Vietnam), make sure you already have a visa. You will not get one at the border. If you fail to extend your visa, you will be charged USD3 for each day you overstay.

Currency
The unit is the Riels. Riel demoninations are 100, 200 and 500. Exchange rates are subject to fluctuation. US dollars are generally accepted thoughout the country. In Phnom Penh, some credit cards can be used and limited services of purchasing and cashing traveller cheques.

Dialing Code
Cambodia's international telephone code is ++855. The area code for Phnom Penh is 23.

Customs Regulations
Religious artifacts and precious stones that you have bought in Cambodia will require an export permit. There is no limit to the amount of foreign currency taken into the country, but it should be declared upon arrival.

Telephone systems
There are no coin-operated phones,as there are no coins,in Cambodia. In Phnom Penh,however,phone cards are available throughout the city,and the cards may be purchased at any outlets.There are also several mobile phone systems.