Mae Sai in the district of Chiang Rai Province is the most northern town in Thailand. It is a major
border crossing between Thailand and Burma.
At first glance, Thailand's most northernmost town, Mae Sai appears to be little more than a large open-air market. But
the city serves as a convenient base for exploring the Golden Triangle,its position across from Myanmar also makes it a stepping-off point for those wishing to explore some of the more remote parts of Shan state
Because occasional fighting within Myanmar or disputes between the Thai and Myanmar governments can lead to the border being closed temporarily, it's always a good idea to check the current situation before travelling
to Mae Sai.