A visa issued at the border when you land — nothing to arrange in advance.
A visa on arrival (VOA) is granted at the destination's port of entry — an airport, land border or seaport — rather than beforehand. You obtain it at a dedicated counter after landing and before passing immigration.
On arrival you go to the visa-on-arrival desk, present your passport, a photo and often proof of onward travel and accommodation, pay the fee (frequently in cash and sometimes only in a specific currency), and receive the visa in your passport.
It is issued on the spot, but expect a queue after a long flight, and confirm the exact fee and accepted payment methods before you travel — these change and are easy to get caught out by.
Unlike an e-visa or embassy visa, there is nothing to apply for in advance. The trade-off is the queue and the need to have the right documents and payment ready on landing. Some countries offer the same visa as an e-visa too, which lets you skip the queue.
A few examples — open any pair for the exact fee, documents and entry conditions:
Check the visa requirements for your passport and destination ↗