Must-see list for kids visiting London?

Asked by fluthernutter (6328) September 24th, 2014 from iPhone

Hello! We’re in England (Bath and London) for a wedding. Any suggestions for kid-friendly things to do or see? We have a bunch of guidebooks, of course. But was hoping for some insider/local tips that the guidebooks might have missed. (The kids are 4 mos, 2 yrs, 3 yrs and 5 yrs—not all mine!)

Thanks and cheers!