One of the things you have to do when you're on sabbatical in a city like London, is make sure you take advantage of your travel opportunities. For my family, this equated to visiting a number of iconic European cities, a luxury that from Vancouver (where I'm usually based) would have been far too costly. Anyway, it's been clear to my wife and I that during these once-in-a-lifetime visits, our consciousness is very much overridden by one central question: "What will Ben and Hannah do?"
Just so you know, Ben and Hannah are my children. You've might have seen them in this previous post, and like any parent, I love them dearly. Nevertheless, traveling with very young children is an interesting experience, as it is by turns wonderful, exhausting, memorable, frustrating, and (just to be clear) exhausting. You are, after all, interacting with a tourist that would most likely rank the playground or the cat that they saw by a tree, far above the Eiffel Tower or the Colosseum. Also, if you're lucky enough to be staying somewhere where there is indoor swimming, then you can rest assured that you will hear of nothing else.