The northernmost town in Thailand, and one of the few official crossings to Myanmar, Mae Sai is an ideal starting point for tours of the Golden Triangle.
The Mae Sai Valley is in Chiang Rai province, and the busy border town at its heart is in a hilly location on cliffs bordering the Mae Nam Sai river.
Take a walk around the hilly town to visit Wat Phra That Doi Wao for views into Myanmar from the temple.
Being a busy border town, Mae Sai has plenty of accommodation, food stalls and restaurants. Shops here sell Burmese lacquerware, gems and jade.
The Mae Sai Valley is in the northern Thailand province of Chiang Rai, on the Myanmar border.
Mae Sai is 1.5 hours from Chiang Rai and 4 to 5 hours from Chiang Mai by bus.