4 Days in London with a Toddler: Family Itinerary (2026)

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Updated October 2026

Four days in London with a toddler works best with one big sight each morning, a playground every afternoon and a base next to St Pancras. This is the exact route we took with Y, aged 3½, from 25 to 29 September 2026, with the address and opening hours for every stop.

After our 7-day Iceland trip with a toddler, we stopped in London before taking the Eurostar to Brussels. There aren't many direct flights from Iceland to central Europe, and we'd already explored other European cities, so this time we chose London.

Our London Itinerary at a Glance

Day 0: Arrive at Heathrow and check in at St Pancras

We flew in from Reykjavík and landed at London Heathrow at night, so we pre-booked a private transfer from the airport straight to the hotel. Immigration took about 45 minutes, even in the family lane. Singaporeans can use the eGates, but children under 8 can't, so families with small kids queue for an officer. Factor that in when you choose a pick-up time for your transfer.

After a full week in Iceland, with a sleepy 3-year-old and all our luggage, we didn't want to queue at a taxi rank or drag bags through the Tube late at night. The drive from Heathrow to St Pancras takes about an hour, longer in traffic.

🚗 Compare private Heathrow transfers on Trip.com and request a child seat when you book. (Affiliate link)

Where we stayed: Pullman London St Pancras

The Pullman sits on Euston Road, a 5-minute walk from St Pancras International and King's Cross. That location shaped the whole trip. Six Tube lines run from King's Cross St Pancras, our Eurostar left from across the road, and Nonos, Double Six Cafe, Yatri, Coal Drops Yard and the Postal Museum were all walkable. Our room looked out towards St Pancras station, which kept Y at the window.

If the Pullman is full, compare other family rooms near King's Cross on Agoda (affiliate link). Staying near a big station saves a lot of buggy-pushing, and on our last day we didn't need any transport at all to reach the train.

Day 1: Portobello Road, Diana Playground, Kensington and Harrods

Day 1 is all about west London: Portobello Road in the morning, the Diana Memorial Playground and Kensington Palace, the Natural History Museum, and dinner from the Harrods Food Halls. It's a long day, but most of it is in parks and museums where a toddler can run around.

Breakfast at Nonos

Nonos is a family-run Greek and Mediterranean restaurant on Judd Street, a 5-minute walk south of St Pancras. It opens at 8:30am every day, which makes it an easy first stop before getting on the Tube. We had the full English breakfast, and liked it enough to come back for lunch on our last day.

Portobello Road Market and Notting Hill

From King's Cross St Pancras, the Hammersmith & City or Circle line runs direct to Ladbroke Grove in about 25 minutes. Portobello Road runs south from there to Notting Hill Gate, lined with pastel houses, antique stalls, vintage shops and street food, including giant pans of paella. Saturday is the main market day, when the antiques dealers are out in full. The quieter side streets off Portobello Road have the prettiest pastel terraces for photos.

Things to know

• Go on a Friday or Saturday for the full market. On other days many stalls are closed, and Sunday is very quiet.
• Get there before 10am. By late morning the narrow street is shoulder to shoulder, which is hard going with a buggy.
• Walk south towards Notting Hill Gate, so you finish closer to Kensington Gardens.

Diana, Princess of Wales Memorial Playground

This is the best free playground in London, and it just got better. The Royal Parks finished a £3 million renewal in August 2026, with a new 17 m pirate galleon on a sandy beach, crow's nests, a tunnel slide and a treehouse with three towers. It's fenced, staffed and inspired by Peter Pan, who was set in these same Kensington Gardens.

Things to know

• Adults can only go in with a child aged 12 or under.
• On sunny days there's a queue to get in from 10am, so arrive at opening or after lunch.
• Bring a change of clothes: the sandy beach and water play get everywhere.

Kensington Palace

Kensington Palace is a 10-minute walk across the gardens from the playground. It was Princess Diana's home and is now the official London home of the Prince and Princess of Wales. We went inside to see the palace rooms and exhibitions, where costumed performers bring some of the rooms to life, and finished with a walk past the Sunken Garden. Under-5s go in free, so a visit with a toddler costs only the adult tickets.

Things to know

• The Queen's State Apartments are closed until spring 2027, and the King's Gallery closes from 18 November 2026, so less of the palace is open than usual.
• Book online at hrp.org.uk. The optional 10% donation is added by default; you can untick it.

Natural History Museum

From Kensington Palace it's about 20 minutes on foot, or a short bus ride, to the Natural History Museum in South Kensington. Entry is free, and the dinosaur gallery, the blue whale skeleton in Hintze Hall and the giant animal skeletons are made for small children.

Things to know

• Book a free entry ticket on nhm.ac.uk before you go. On weekends and school holidays, the walk-up queue can be long.
• Bags may be searched at the entrance, so pack light.
• The Dinosaurs gallery is the busiest. Do it first or last.

Dinner from the Harrods Food Halls

Harrods is a 10-minute walk from the museum along Brompton Road. The Food Halls on the ground floor are part grocery, part food court, with counters for sushi, roasts, pastries and chocolate. We picked up a roast chicken, an easy dinner to share after a long day on our feet.

There's no seating area in the Food Halls, so buy your food and find a park nearby to enjoy it. On a Saturday evening the halls were packed, so hold on to little hands.

Day 2: Thames cruise, Tower of London, Chinatown and Covent Garden

Day 2 follows the river: a return City Cruises boat from Tower Pier, the Tower of London, a playground break, then an early dinner in Chinatown at Gold Mine and the street performers in Covent Garden.

Breakfast at Double Six Cafe

We had breakfast at Double Six Cafe, a traditional greasy-spoon café on Eversholt Street behind Euston station, before heading to the river. It was probably the most affordable meal we had in London, and the portions were huge. Don't expect anything fancy, and the seats are pretty small, but it serves a very good breakfast for the price.

Boat along the River Thames

There are several ways to see London from the Thames. We went with City Cruises because the timing worked best for us. We bought a return ticket at Tower Millennium Pier, right next to the Tower of London, rode up the river to Westminster and back, then went into the Tower. The return trip took about 90 minutes.

The alternative is a one-way trip from Westminster Pier to Tower Pier, passing the Houses of Parliament, St Paul's and the Shard, which also gets you to the Tower without the Tube. We'd recommend booking a day ahead. We took the second boat of the day, at 10:45am, and it got much more crowded later on, especially at the weekend.

Things to know

• Sit on the open upper deck for the best views, but hold on to little ones. The heated indoor saloon is there if it rains.
• Boats have live English commentary, plus recorded commentary in other languages through the City Experiences app.
• If you have more time, carry on to Greenwich for the Cutty Sark and the Royal Observatory. Book a Westminster to Greenwich sightseeing cruise on Klook. (Affiliate link)
• Prefer a combo ticket? Compare Thames cruises and London attraction tickets on Trip.com. (Affiliate link)

Tower of London

After the boat ride, we visited the Tower of London. The Tower is 900 years of London history in one place: the Crown Jewels, the White Tower, the ravens and the Yeoman Warders in their red and black uniforms. Free Yeoman Warder tours are included in your ticket, and H really enjoyed the guide's storytelling. Give yourself time here: we spent about 2 hours.

Things to know

• It gets very crowded, especially at weekends. Book online in advance (we booked on Klook) so you can skip the ticket queue.
• Join a Yeoman Warder tour: they're free and full of stories.
• Go to the Crown Jewels first, before the queue builds.
• The cobbles and spiral staircases are hard with a buggy. A carrier is easier.

Tower Hill playground

After the Tower, we stopped at Tower Hill playground, across the road in Tower Hill Gardens by the old Roman wall. It's small and free, with a slide, wooden climbing steps and a roundabout, and a view of the Tower walls: a good place to let a toddler run after two hours of history.

Things to know

• The City of London plans to rebuild it with a fort theme, so check whether it's open before you go. Portsoken Street Gardens, about 10 minutes' walk away, has another small playground with a sandpit.

Early dinner in Chinatown at Gold Mine

Gold Mine (金山樓) is best known for its Cantonese roast duck. The original is on Queensway in Bayswater; we went to the Chinatown branch on Wardour Street. We ordered the roast duck and fried rice, which was plenty for two adults and a toddler. An early dinner, around 5pm, beats the evening queue.

Covent Garden street performers

Covent Garden is a 10-minute walk from Chinatown. Licensed street performers take turns on the West Piazza in front of St Paul's Church, from jugglers to escape artists, all day and into the evening, and you'll pass living statues on the way. It's free, it's outdoors, and toddlers can sit on the cobbles right at the front.

Things to know

• Shows run about 20–30 minutes. Performers pass a hat at the end, so keep some coins or a contactless card handy.
• The covered market hall has toilets and baby-changing.

Day 3: Big Ben photoshoot, Changing the Guard and King's Cross

Day 3 starts with a family photoshoot from the London Eye to Big Ben, then the Changing of the Guard at Buckingham Palace, the playground in St James's Park, and an Indian lunch near our hotel before an afternoon nap and King's Cross.

Family photoshoot from the London Eye to Big Ben

We booked a family photoshoot that started at the London Eye on the South Bank and finished at Big Ben. The route is short and full of classic backdrops: the Eye from Jubilee Gardens, the river from the Queen's Walk, then Westminster Bridge with the Houses of Parliament and Big Ben behind you. From Big Ben, it's about a 15-minute walk through St James's Park to Buckingham Palace, just in time for the guards.

Things to know

• Start early, by 8am if you can. Westminster Bridge fills with tour groups by mid-morning.
• Westminster Bridge is narrow and busy, so keep your toddler in a carrier or holding hands between shots.

Break at St James's Café

We took a short break at St James's Café, a timber pavilion beside the lake in St James's Park, before heading over to the Changing of the Guard. Pancakes with strawberries and a coffee were exactly what we needed after an early start.

Changing the Guard at Buckingham Palace

The King's Guard hands over to the New Guard in the forecourt of Buckingham Palace, with a military band, red tunics and bearskin hats. The ceremony itself lasts about 45 minutes, but the marching bands up The Mall and along Birdcage Walk are often the best bit for a toddler on your shoulders.

Things to know

• Arrive by 10:15am for a place by the palace railings or on the steps of the Victoria Memorial.
• With a toddler, watch from the edge of The Mall or outside Wellington Barracks on Birdcage Walk. You'll see the guards and band up close without the crush at the palace gates.
• Watch your bags; pickpockets work the crowd.

St James's Park playground

St James's Park is right next to the palace, so it's the natural place to unwind after the crowds. Walk along the lake to look for the park's famous pelicans, then let your toddler loose in the St James's Park playground on the Birdcage Walk side. It has a big sandpit, swings, slides and climbing frames. It's free, and after an hour of standing still for the guards, it's exactly what a 3-year-old needs.

Things to know

• Bring a bucket and spade for the sandpit.

Lunch at Yatri

Back near the hotel, Yatri on Chalton Street serves regional North and Northwest Indian food. It's in Somers Town, a few minutes' walk behind Euston and St Pancras, and a good-value change from the West End. We shared naan, railway chicken curry and chicken biryani. Railway curry is a milder Anglo-Indian dish that dates back to the old Indian railways, which makes it an easy pick for kids.

Platform 9¾, Coal Drops Yard and Granary Square

After lunch, we went back to the hotel for a nap, as we'd woken up early for the shoot. In the late afternoon, we headed to Harry Potter's Platform 9¾ inside King's Cross station: a luggage trolley disappearing into a brick wall, next to the Harry Potter shop. You can take your own photo free, or queue for the staff photographer, who supplies the scarf and the flying-scarf pose. The queue was long, so we skipped it.

From there, walk 5 minutes north to Coal Drops Yard, two Victorian coal warehouses turned into shops and restaurants. Next door, the Granary Square steps lead down to Regent's Canal, and the fountains in the square are a favourite with small children.

Things to know

• The Platform 9¾ queue is shortest early in the morning or in the evening.
• Granary Square's fountains soak little ones, so bring a towel or spare clothes.

Day 4: Postal Museum and the Eurostar to Brussels

Our last morning was at the Postal Museum, a 15-minute walk from the hotel, then lunch at Nonos and the afternoon Eurostar to Brussels. It's a relaxed final day that keeps you close to St Pancras.

The Postal Museum and Mail Rail

We stopped at a café near the museum for breakfast before heading in. The Postal Museum's highlight is Mail Rail, a ride on the miniature trains that used to carry post through tunnels 21 metres under London. Every ticket includes one ride. Y loved it, but it's not for anyone who's claustrophobic. Across the road, Sorted! is a postal-themed play space for ages 1–8, with sorting chutes, a mini post office and ride-on trolleys.

Things to know

• Book in advance, especially at weekends. Sorted! sessions sell out first and are booked on postalmuseum.org.
• Head to Mail Rail first, at the time on your ticket. Buggies aren't allowed on the lower ground floor, so park it on the ground floor of the Mail Rail building.
• The café has highchairs, and there's baby-changing in both buildings.

Lunch at Nonos

We went back to Nonos for lunch, chicken skewers and grilled octopus this time, then walked to St Pancras for the Eurostar. See Day 1 for the address and opening hours.

Eurostar from St Pancras to Brussels

London to Brussels-Midi takes about 2 hours, city centre to city centre. Our ticket included a light meal at our seat, which made dinner on the go with a toddler easy.

Things to know

• UK exit and Schengen entry checks both happen at St Pancras before you board, so allow time for the queue.
• Compare London to Brussels Eurostar fares on Trip.com. (Affiliate link)

Where We Ate: Addresses and Opening Hours

Three of our favourite meals were within a 10-minute walk of St Pancras, which made early dinners and nap-time breaks easy.

Getting Around London with a Toddler

Use a contactless card or phone on the Tube and buses; children under 11 travel free with a paying adult. Tap in and out with the same card each time, and daily fare caps apply automatically. Most central stations have stairs, so a light, foldable buggy or a carrier is easier than a big pram. Buses all have space for buggies, and the upper deck front seats are a free sightseeing tour.

Things to know

• Get a Europe eSIM before you fly. We use this Shopee eSIM for the UK and Europe. (Affiliate link)
• Late September weather is mild but changeable, around 12–19°C. We had a mix of blue skies and grey, cloudy days.

What Worked with a 3-Year-Old

• One big sight each morning. Portobello, the Thames cruise and the Postal Museum all got our best hours, before the crowds and before Y got tired.
• A playground every day. The Diana Memorial Playground, Tower Hill playground and St James's Park playground broke up the sightseeing.
• A hotel nap on the busy day. After an early photoshoot and the guards, an afternoon back at the Pullman meant we could still go out to King's Cross in the evening.
• Early dinners. Eating at around 5pm at Gold Mine meant no queue and no overtired toddler.
• A compact stroller. Easy to fold for the Tube and the boat, and a lifesaver on the long walk from Notting Hill to South Kensington.

What to Pack for London in Late September with a Toddler

• Layers and a light rain jacket for everyone; the weather can change in an hour.
• A compact, foldable stroller or a carrier for stairs, cobbles and crowds.
• Spare clothes and a small towel for the sand at the Diana and St James's Park playgrounds and the Granary Square fountains.
• A bucket and spade for the sandpits.
• Snacks and a refillable water bottle.
• No adaptor needed if you're from Singapore: the UK uses the same Type G three-pin plug.

How Much the Attractions Cost (2 Adults and a 3-Year-Old)

About half of this itinerary is free. Paid entry for two adults and a toddler came to about £230, and under-5s go free almost everywhere.

London with a Toddler FAQ

Is London good for a holiday with a toddler?

Yes. Many of the best things for small children are free: the Natural History Museum, the Diana Memorial Playground, the parks and the street performers in Covent Garden. Children under 11 also ride the Tube and buses free with a paying adult, and under-5s get into the Tower of London and Kensington Palace free.

How many days do you need in London with a toddler?

Four days is enough for the main sights at a toddler's pace, with one big attraction in the morning, a playground or museum in the afternoon and an early dinner. Plan for a playground break every day.

How long does Heathrow immigration take with young children?

It took us about 45 minutes in the family lane when we landed at night in September 2026. Since July 2026, children can use the UK eGates from age 8 if they're at least 120 cm tall, so families with younger children still queue for an officer. Allow for this when you book an airport transfer.

Are London's museums free?

Most big national museums are free, including the Natural History Museum, where you can book a free timed ticket to skip the queue. Paid attractions on our trip were Kensington Palace, the Tower of London and the Postal Museum, and under-5s were free at the first two.

What time is the Changing of the Guard at Buckingham Palace?

The Guard Change usually starts at 11am on Mondays, Wednesdays and Fridays. Dates change and it can be cancelled in bad weather, so check the Household Division calendar the day before and arrive by 10:15am for a spot by the railings.

Is Mail Rail suitable for toddlers?

Our 3-year-old loved it. The ride runs through narrow, enclosed tunnels deep underground, so it isn't great for anyone claustrophobic, and buggies have to be parked on the ground floor before you go down.

Is St Pancras a good base for a family trip to London?

Yes, especially if you're taking the Eurostar. Six Tube lines meet at King's Cross St Pancras, Platform 9¾ is in the station next door, and the Postal Museum, Coal Drops Yard, Nonos, Double Six Cafe and Yatri are all within walking distance.

One thing worth knowing before you book: the Diana Memorial Playground and the Natural History Museum are both free and a short walk apart. If the weather turns on your Kensington day, swap the order and you've still got a full day.

Prices and opening hours were checked in October 2026 on official websites where available; restaurant hours come from the restaurants or recent listings. Always check current rates and times before you go. This post contains affiliate links; if you book through them, we may earn a small commission at no extra cost to you.