Colleen C.
Yelp
It's free!
(but make a donation, mmmkay?) Keep cool things in London free. Or at least buy a little something from the cafe or gift shop. My husband thought it would be hilarious to buy a little rubber toy rat for our son. It's consequently freaked out every person that has come to visit us. It's now mysteriously absent -- makes me think the babysitter threw it out. Regardless! Support given.
We were meeting some friends nearby at *Tom's Kitchen for brunch (recommended!) and decided to use the Canary Wharf excursion to check out Museum of London Docklands, where a soft play area was rumored to be housed.
And indeed -- a very nice little area for the little ones can be found here. There's a pretty large, enclosed area containing: water/sand play (probably best for 2+), HUGE building blocks section, fun little toys about shipping and transport (they manage to make them fun and durable), and of course, a soft play centre with requisite slide, nets, climbing and big soft squishy shapes.
Bookings for these sessions can be made in advance -- though I couldn't figure out how, so we just turned up on a Sunday and lucked out that there was space. IF it is a busy time of year (half term, etc) I do suggest calling ahead to book. It runs in sessions so once the end of the session comes, everyone is out and a new batch is let in. This worked well for us as we spent about 40 minutes inside...but our timing was purely luck. Next time we'll book and know when it starts/ends.
We took the opportunity to view the museum -- also very child and pram friendly. It's very nicely curated, interesting and most importantly with a child -- relatively fast. You can go through the entire Museum in about 20 minutes, should you need to.
Situated right on the Docklands (obviously) this is a great kid-friendly stop if you are out seeing the sights or visiting the area.