Just my 2 cents,take the kids, go to a park or a cemetery and hunt there. There is a lot more space, fewer muggles, and more room for the kids to wiggle and help you find what you are looking for. I have always had at least one small child (age 4) with me for every cache so far. They think it's an adventure "looking for treasure", and it's hilarious to watch them try to be secretive if other people come near. However, it is impossible for them to be stealth in an urban or populated area, so I don't even try those anymore. We had our kids on hiking trails before they could walk and we've all survived. (In fact, we find it quite humorous to see the hikers in all of their hiking gear, boots and walking sticks, compared to the preschoolers in sandals.)Just go for it, have a back-up plan, for example, if you don't find any caches with goodies for the kiddies, take them for icecream or give them something from your trade stash. Just have fun.