From Phaholyothin Road Turn Left at "Por Khun Meng Rai" Monument (Turn Right if you come from the airport) to Uttarakit Road, then Turn Right @ the first traffic light (API Square at your left hand side) to go to Srikerd Road.
CEI doesn't have public transportation service. You have to book for car rental in advance or look for Airport Taxi costs around 300 baht to go down town.
There are plenty of galleries in Chiang Rai, however, most of them are located quite far from one another and it’s impossible to visit them all in one day. It’s therefore recommended to decide which galleries to visit and choose a route carefully. It is also important to remember that for most Lanna art, much of the inspiration comes from Buddhism.