We stayed only three days in Paris and had so many people to see we didn't have a lot of time to do things. We actually pretty much saw only the Louvre and the Eiffel Tower. We had a lot to do and brought Mason everywhere. We hung out with friends who had kids and some who didn't so it wasn't always easy to have him with us but he was overall very good. Coming from the US where there is so much to do for kids, I was shocked to see how Paris was not accommodating to babies/toddlers. I was a single girl during all the years I lived there so it was a new discovery for me.
So we found that beautiful open playground called The Louvre, and if I lived there again, I think I would take Mason every single day... No joke, it's really the most beautiful place there is - just let the pictures speak for themselves!