To get to Doi Mae Salong by public transport, you will first have to go to Mae Sai by bus and ask to be dropped off at the Mae Chan market (1 hour ride) then take a songthaew to Mae Salong (60 THB). Be careful, there are only 4 departures per day (07.30 am, 9 am, 11 am and 1 pm but check it gone, timetalbe may have changed). As for me, it is better to have your own means of transport to go to Doi Mae Salong because by public transport you have to be sure to not miss the last songthaew. If you do, there are
guesthouses in Doi Mae Salong.