Cambodian entry regulations have recently changed. For years, it has been easy to get a visa upon arrival for the price of 20 US dollars. Meanwhile, it is necessary to get a visa at a Cambodian embassy before travelling to Cambodia. Visas are obtained easiest in Bangkok, either directly at the embassy or through a tour operator or travel agency. The cost for a visa is 20 or 30 US dollars. There seem to be different prices in different countries.
There are now several overland routes open to foreign visitors. The earliest land crossing open to foreign visitors has been on the road between Saigon and Phnom Penh. Meanwhile, it has become legal to enter Cambodia overland from Thailand as well. The standard route is via Aranyaprathet (Thailand) and Poipet (Cambodia).
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