As relaxed as Pai is, there is still plenty to keep the more active visitor on his or her toes. The Tha Pai Hot Springs are five miles south of the town in the Mae Hong Son province and make a pretty spot to have a nice, warm bath, particularly during a tranquil sunrise.
The Pai Canyon (Kong Lan as it's known in Thai) is also worth a visit and, as an added bonus, entry is free. A walk through the canyon is not for the faint-hearted though, with steep 30-metre drops on either side of narrow paths, but the panoramic peak-filled views are completely worth it.