Visa Requirement for Cambodia
Please note that a visa is required to enter Cambodia. A visa can either be made prior to arrival at Cambodian embassies or on arrival in Cambodia. Visa on arrival requires 2 passport photos, a visa fee of 20 USD and your passport must be valid 6 months longer than your intended stay.
Since the e-Visa is now applicable, you can also apply for a tourist visa online at http://www.mfaic.gov.kh/evisa/ The visa fee (20 USD) and processing charge (5 USD) are payable by credit card only.