Hello, I have searched the group, so forgive me if this scenario has already been presented. I am planning to go to Chiang Mai (from Myanmar where I currently live) to study for a CELTA (4-week course) and then plan to stay in Chiang Mai for about 3 months after the course has finished (I WILL NOT be working during this time- just a tourist). I am a British national and plan to apply for the 6-month tourist visa in Yangon (to cover the length of my course +30 days) and then extend for 30 additional days (while in Thailand). From my understanding, after 90 days of stay on this tourist visa, I will be able to do a border run and come back on a visa-free extension for my last 30 days. I plan on moving to a new country at the end of this time. I know it is often up to the immigration officers, but does anyone have experience with this/advice? Thanks so much for your help.