Making sure your passport and visa are in order is your own responsibility. For many EU citizens, a tourist visa is required to enter Cambodia. This can be obtained on arrival for a cost of US $35 (subject to change). You will need to take one recent passport sized photo ( 2 x 2 inches) as well as a completed application form. You must also have at least 6 months validity on your passport. Please check at your nearest Cambodian embassy for up to date information.