A little advice please, i currently have a house near si bun ruang and plan to drive up to see a mate in chiang mai. I was planning to stop in phitsanulok one night on the outward and return journey.(hotel). My question is , do i have to report my arrival in chiang mai and also report my return to si bun ruang a week later at immigration? Many thanks
TLDR : Answer Summary
You do not need to report your arrival in Chiang Mai or your return to Si Bun Ruang. According to several travelers, within Thailand, local travel does not require immigration reporting, except for the initial entry from another country.