We did and a different island with the same age kids and felt very safe.
Depending on how old your kids are they may enjoy a day trip to Kanchanaburi to the River Kwai visiting the war museum, Bridge, Elephant camp, bamboo rafting.
There is lots to do with kids in Chiang Mai.
Vulnerable children are often taken by sex trafficking and then sold to individuals or in Thailand.
Head over to see one evening, great show the kids will love.
Retrieved 13 June 2016.