It is possible to enter Cambodia through the three international airports (Phnom Penh, Sihanoukville and Sian Rep), through the port of Sihanoukville and through the land borders equipped for the passage of foreign non frontaliari (four with Thailand, Along Veng, Poipet , Pailin and Ko Kong one with Laos and five with Vietnam, Ha Tien, Bang Na, Bavet, Snuol and Banglung).
From Ho Chi Minh (Saigon) There are comfortable AC buses that go directly to Phnom Phen or Sian Rep or Sihanoukville.
From the border of Laos there are the means that make service Stung Treng, where there are comfortable bus to Phnom Phen.
From any point of Thai territory you can easily get to each of the four crossings open to foreigners from where you will find the means to continue toward the major Cambodian cities.
Brand new streets, all paved, connect with Sian Rep Poipet and Phnom Phen and, along the sea, Koh Kong and Sihanoukville to Phnom Phen.
The tourist visa is issued on request for a fee of twenty dollars, in all Cambodian embassies around the world and also in all crossings authorized to foreigners.
At road crossing points you will be requested extra dollars for reasons ranging from the compilation of the application form, to the photos or to an alleged change, always very unfortunate.
And 'advisable to not get stuck until the requests are limited.
The renewal of tourist visa may be required for a single month to general immigration office (in front of the airport of Phnom Phen) or through various agencies in the major centers of the country and costs US $ 45.
And 'good rule never to leave expired visa anywhere in the world. If this happened in Cambodia you shall be incurred NOT quantified fixed fines for the addition to unquantified (usually $ 5) daily fines.
The business visa for a period of one month may be requested consular offices or even at any crossing aereoportuale or road, as well as sea to the tune of $ 25 US.
This visa can be renewed for one month or three months with a visa renewal so-called closed in the sense that leaving the country the visa expires, or for six months or one year with a renewal of the so-called open seen, in the sense that in the period of validity you can go abroad without all that the visa expires.
A month renewal costs $ 45, $ 75 three months, six months and one year 150 280. These costs can vary, slightly, from agency to agency and from year to year.