Visas are available on arrival at air and land entry points. You can also apply for a visa online, but this is not necessary as it is very simple for all members of a team to do so on arrival.
This visa is a single entry (30 day) tourist visa, costing 30 USD. To obtain a visa on arrival you will need to take the following;
For more information contact the Royal Embassy of Cambodia in London on 020 8451 7850 or 020 8451 7997 or by email visaenquiriescambodia@gmail.com
Detailed information can also be found here - www.evisa.gov.kh