Pai is a town in the Mae Hong Soon Province of northern Thailand. It sits in a valley on the banks of the Pai River. The Pai River is quite pretty, and one relaxing way to travel along it is on an inner tube. A few places around town can organize tube rental, often combined with transport. Generally, a truck will take you up river by a couple of kilometers, you get in the water and float downstream back into town.
Floating down river on an inflated rubber tube has long been a favourite pasttime of SE Asian backpackers, and the gentle current of the Pai River and its attractive scenery make this fun. Unlike the more famous Vang Vieng in Laos, the Pai River isn't lined with raucous bars playing loud music, which some may consider more a blessing than a curse.
Free-floating tubing, the tube riders are untethered and often conveyed by the current of a waterway. It can be fun and exhilarating, the size of the tube allows a tuber to ride the river in an unencumbered manner not found in rafting or kayaking. Tubers can employ the use of such items as dry boxes and mesh bags to carry small personal items and pack out trash, cans and bottles from their trip.