Recently moved quite close to London and need some advice on family activities ( especially rainy day ones) we have only been to the national history museum so far witch was great! Kids are 8,6,4. What other museums are kid friendly?
Best IMO are: - science museum (totally free, unless you go to an exhibition, and stuff for all age ranges - don't miss the Garden Room and area at the back for your 4yo) - London Transport Museum (again, amazing play area for younger kids)
I'd also recommend the National Maritime Museum at Greenwich, the Museum of London Docklands (has soft play area your 4yo might still enjoy), the Horniman and the Wellcome Institute (better for the older child).
I love the British Museum myself but it doesn't have anything for younger children really. In summer the V & A has a great paddling pool near the cafe and that is enough for the younger children.