The perfect day in Toronto with kids requires a whole lot of energy, so it is good to get an early start. You and your family will participate in some classic activities, ones that hundreds of thousands of Canadian children have experienced before you. This includes placing your hand on the big metal ball at the Science Centre – or watching someone else do it, if you are too scared – and saying "No!" to the kids as they roam in and out of the stores at The Eaton Centre, one of the city's main tourist attractions. In between, you'll eat at child-friendly restaurants with strange names and perhaps tumble down a water slide, ice cream in hand. Best get going. There are only so many hours in a day for your best family vacation to Toronto.