We do daily Visa Runs From Pai (leaving 4:30AM) arriving in Chiang Mai (at 7:30am) at pickup Greenpark Community Mall (กรีนพาร์ค คอมมูนิตี้มอลล์) to Ton Pheung, Laos arriving at midday which you will then cross the border and return. You will return in Chiang Mai at around 4;30 and Pai 6-7pm.