Do I need a tourist visa to stay 30 days in Thailand or can I get a visa on arrival?

If you are staying in Thailand for 30 days, you generally have the option to receive a visa exemption, which allows you to enter without a visa for up to 45 days if you are from certain countries. Alternatively, you can obtain a tourist visa beforehand if you're not eligible for the visa exemption. Currently, Thailand also offers a 45-day visa on arrival, which can be extended for another 45 days, allowing for a total stay of 90 days.