Photo: Takeaway, CC BY-SA 3.0, via Wikimedia Commons. A stall selling freshly grilled fish and chicken at Thanin market in Chiang Mai. · Photo source · License
Chiang Mai's markets are the easiest way into northern Thai food: khao soi, sai oua sausage and nam phrik num chilli dip all turn up on market stalls. Below are four of them, each with a full guide to what to eat, opening hours and getting there: the evening Night Bazaar on Chang Khlan Road, the Sunday Walking Street on Ratchadamnoen Road in the Old City, the Saturday Walking Street on Wualai Road, and Warorot Market (Kad Luang), the city's main traditional market. Entry is free at all four.
The Night Bazaar opens every evening, the two walking streets run only on their named evenings, and Warorot is a daytime market, so a stay that spans a weekend can take in all four. The Saturday Walking Street closes earlier in heavy rain, and hours differ between sources: each guide says which source gives which time.