By car
By car
Coming from Mae Sot south just follow the 105. It's about a 240km drive. There are no official gas stations on the way. So either fill the tank before you leave Mae Sot. Or if you almost run out of fuel, drive into one of the villages on the way and ask for a shop where they offer fuel by hand pumps. The road is pretty good, though at some parts there are a few bumps and holes probably due to the heavy rains in the wet season.
Coming from Chiang Mai west take the route 108.