Visas ...are easily available on arrival at the international airports in Phnom Penh and Siem Reap. When travelling overland, you can also get visas at the Thai border crossings at Aranyaprathet/Poipet and Hat Lek/Koh Kong. 2 photos are required. As at now, visas are not available at the Vietnamese or Lao border crossings.  

One month tourist visas cost $20 and business visas $25. However, if you cross into Cambodia by land, immigration might refuse to accept your US$ and ask you for 1000 baht for the tourist visa and 1200 baht for a business visa instead.....  If you're planning to spend some time in Cambodia, bear in mind that tourist visas can only be extended one month, whereas business visas can be extended for as long as you like.

The visa process is very easy and there is absolutely no need to pay anyone anything extra to process the visa for you!!!

Please note: Some Khao San Road-based travel agencies and tour operators offer transport to Siem Reap for prices as low as 50-80 baht!!! The agencies make up for this cheap transport by ‘selling’ passengers to guesthouses in Siem Reap. We have, unfortunately, had reports from several travellers which have had hefty arguments and/or paid an extra fee in order to get out of the guesthouse of which they had been ‘delivered’.

Click here for Gordon Sharpless' comprehensive description on how to the trip to Cambodia overland, and how to avoid the scams.