London with kids: the family guide we wish we'd had
Why London is one of the best-value family city breaks in the world if you know where the free wins are, and the few things that catch families out.
A family in London
Documentary family-travel photo, London: a parent and two children on the front seats of a red double-decker top deck, or outside the Natural History Museum, soft grey daylight, raincoats to hand. No identifiable minor faces. Real and warm, not stock.
/media/guides/london-with-kids-hero.jpgThe short version
Best ages: 5 to 14. Ideal length: 4 to 5 days, one base, neighbourhood by neighbourhood. Walkability: good, and the public transport is excellent once you have the right cards. Food for fussy or allergic kids: easy for fussy eaters and among the best cities anywhere for allergy labelling, detail below. The one mistake everyone makes: paying for big-ticket attractions while the world-class museums next door are free.
Why it works
London is quietly one of the great family destinations because so much of the best of it is free: the British Museum, the Natural History Museum, the Science Museum, the Tate galleries and dozens more cost nothing to enter, and they are genuinely world-class. Everyone speaks the language, there are parks and playgrounds threaded through every district, and the top deck at the front of a red bus is a free attraction in itself. The trade-offs are real ones: it is expensive for food and paid attractions, the weather is unreliable in any season, the Underground is hot and step-heavy with a pram, and the scale of the place means a badly planned day is mostly spent in transit. Plan around free anchors and the city becomes remarkably affordable.
What to do, by the ages you are actually bringing
Ages 5 to 7
The Natural History Museum dinosaurs (free), the playground and Diana Memorial fountain in Kensington Gardens, and a ride on the top deck of a bus going anywhere. The London Transport Museum in Covent Garden is a sleeper hit. Keep one big thing per day, plus a park.
Ages 8 to 10
The Science Museum's hands-on Wonderlab (book ahead), a Thames riverboat from Westminster to Greenwich, and the changing of the guard if the timing is easy rather than a mission. The Warner Bros. Studio Tour (Harry Potter) is a full, pricey, brilliant day for the right kid.
Ages 11 to 14
The Tower of London (the ravens and Crown Jewels still land at this age), a West End matinee, the View from the Shard or the cheaper Sky Garden, and letting them navigate the Tube with a contactless card. Borough Market is a genuinely fun food adventure for older kids.
Mixed ages
South Kensington is the cheat code: three major free museums and a park within a few minutes of each other, so you can split by interest and regroup. Big green spaces (Hyde Park, Greenwich, Hampstead Heath) reset everyone. Agree a meeting point before anyone disappears into a gift shop.
Eating in London with allergies and fussy eaters
London is one of the easiest major cities in the world for allergy-aware families, thanks to strict UK food-labelling law. Packaged foods must clearly label the 14 major allergens, restaurants are legally required to provide allergen information on request, and most chains publish detailed allergen menus online that you can check before you go. That does not remove the need for vigilance: cross-contact in busy kitchens is still real, and staff knowledge varies, so always tell the server directly and ask them to check rather than relying on the menu alone. For fussy eaters, London is effortless: every cuisine on earth, plain options everywhere, and supermarkets (Tesco, Sainsbury's, M&S) on every corner with clearly labelled, child-friendly food for picnic lunches that also save serious money. None of this is a guarantee; kitchens and recipes change, so always confirm with the person serving you, on the day.
How we handle allergy checks on real trips →The practical bits
When to go: May, June and September for the kindest weather and lighter crowds; December is cold but magic if you lean into it. Getting around: use contactless or Apple Pay to tap on and off; under-11s travel free on the Tube and buses with a paying adult, and buses are easier than the step-heavy Underground with a pram. Prams: buses over Tube where you can; many stations have no lift. Weather: pack a waterproof layer whatever the forecast and keep one indoor anchor per day. Money-saver: the free national museums are the backbone of an affordable trip; picnic from a supermarket to dodge central-London food prices. Budget signal: high for food and paid attractions, but free museums and parks bring the daily average right down.
What one Yaycay day in London looks like
The fastest way to see how Yaycay plans a day is the real one we publish in full: two kids of different ages, an allergy managed at every meal, and a wet afternoon already handled. It is a five-minute read, and a London day would be built to exactly the same shape.
Read a real Yaycay sample day →More family guides
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