Young V&A: National Playday

A full day of hands-on creative play to mark National Play Day: DIY inflatable-art building, circus skills with the National Centre for Circus Arts, an imaginative-play "Constellation of Play" room, and meet-the-designer sessions with Kingston School of Art students. Genuinely participatory rather than a look-don't-touch museum visit.

It's free, drop-in, and built for exactly the kind of chaos small kids bring — no booking, no set start time, just turn up and follow whichever activity grabs them first.