Pai is a small town in northern Thailand's Mae Hong Son Province, near the Myanmar border, about 80 km north of Chiangmai on the northern route to Mae Hong Son. It lies along the Pai River. The town has thesaban tambon status and covers parts of the tambon Wiang Tai of Pai district.
Pai was once a quiet market village inhabited by Shan people (an ethnic Tai whose culture is influenced by Burma), but nowadays Pai primarily thrives on tourism. Well-known among backpackers for its relaxed atmosphere, the town is full of cheap guesthouses, souvenir shops and restaurants. In the proximity of the town are spas and elephant camps. Further outside of town, there are several waterfalls and a number of natural hot springs. Some resorts tap the hot springs and feed hot water into private bungalows and public pools. As Pai lies at the foot of the mountains, many tourists use it as a base for trekking and visiting hill tribes like Karen, Hmong, Lisu and Lahu. Another notable attraction is the town's excellent Wednesday Market which brings large and colorful crowds of local villagers and tribal people from all around the Pai Valley.