Can I apply for a ฿1900 30-day extension upon arrival in Thailand on a 30-day visa exemption?

When arriving at BKK Immigration on a 30-day visa exemption, you cannot apply for the ฿1900 30-day extension immediately at the airport. Instead, you will need to visit an Immigration Office after your arrival to apply for the extension. Alternatively, it may be more convenient to apply for a Single Entry Tourist Visa beforehand, which allows for 60 days of stay upon entry, with the option to extend for another 30 days at an immigration office.