Mae Sai is Thailand’s most northern town and is next to the river border with Myanmar. The town itself features markets selling clothing, souvenirs, sweets and other products from Thailand, Myanmar and China. Shopping opportunities galore have made Mae Sai a popular destination for Thai travellers. For Westerners, the town’s aura of the exotic and as a gateway to Tachilek in Myanmar are the primary draws.
A Friendship Bridge built to commemorate links between Thailand and Myanmar spans the Sai River. The bridge has official immigration checkpoints for entry to both countries. Mae Sai boasts a few tourism draws and is a comfortable base for tours to the Golden Triangle and Doi Tung. The linked web-pages give more details about the recommended Mae Sai attractions and activities as well as hotels, restaurants and how to get here.