Visa On Arrival (VOA) allows you to travel to your destination country and apply for a visa when you arrive. This involves visiting the visa counter at the your destination, often located before customs, where you apply and pay for a visa on the spot. Once your visa is granted, you can then proceed through customs.
Visa On Arrival is often limited to certain entry points (also known as checkpoints). If you are to enter through an entry point where Visa On Arrival is not available, you will need to apply for a regular visa before travelling.
Visa On Arrival can be refused or denied, at the discretion of the immigration officer.