If there’s one thing the United Kingdom absolutely nails, it’s castles. The country has over 1,500 of them — from crumbling hilltop ruins where kids can lose themselves for hours to lavishly restored royal fortresses with jousting shows, falconry displays, and enough drama to keep the whole family glued. Whether you’re planning a Scottish Highlands road trip, a Welsh castle trail, an Irish adventure, or a classic English day out, the UK delivers castle experiences that genuinely make history feel alive.
This guide covers the best castles to visit in the UK with kids — by country, with practical details, honest parent notes, and tips on which ones are worth every penny (and which free ones are secretly brilliant). If you’re looking for a broader overview that includes Europe’s greatest castles beyond the UK, check out our Best Castles to Visit in Europe With Kids pillar page. But if the British Isles are on the agenda, read on.
A Quick Note on the 10 Largest Castles in the UK
Before we get into the family favorites, here’s a fun fact worth knowing: among the 10 largest castles in the UK by area, you’ll find Windsor Castle (the world’s oldest and largest occupied castle, with approximately 1,000 rooms), Caerphilly Castle in Wales (the second largest in Britain at 30 acres), Edinburgh Castle (perched 135 metres above the Scottish capital on a volcanic crag), and Caernarfon Castle in North Wales (an Edward I masterpiece that took 47 years and £25,000 to build). Warwick Castle, Dover Castle, Stirling Castle, Bamburgh Castle, Tower of London, and Conwy Castle round out the upper tier by different measures of size and grandeur.
The good news? Nearly all of the top 10 largest castles in the UK are open to families, most have dedicated children’s activities, and several appear in this guide. So you’ll likely be visiting some genuine giants without even realizing it.
Best Castles to Visit in England
England has an almost unfair concentration of spectacular castles, from the royal behemoths in the south to the brooding Northumbrian fortresses above the North Sea coast.
Warwick Castle — The Ultimate Family Castle
There is no list of the best castles to visit in the UK that doesn’t start here. Warwick Castle, sitting above the River Avon in Warwickshire, is what happens when 1,000 years of authentic history gets professionally amplified for family entertainment — and somehow it works brilliantly. Built by William the Conqueror in 1068, it’s now managed by the Merlin group, and the programming is genuinely excellent.
Warwick Castle bills itself as the ‘ultimate castle’ with daily shows such as jousting tournaments and falconry displays, a Horrible Histories Maze and an interactive dungeon experience — as well as the option of glamping in the grounds. The Time Tower audio-visual experience takes families on a whistle-stop ride through the castle’s history. Outside, the Mighty Trebuchet launch is a crowd-stopper that you can hear from the car park.
Plan for a full day, arrive early, and book tickets well in advance for summer. The glamping option in the castle grounds is genuinely one of the most memorable things you can do on a UK family holiday — waking up inside a medieval fortress is not something kids forget.
Best for: All ages, especially 5–14
Location: Warwick, 20 minutes from Stratford-upon-Avon
Don’t miss: The trebuchet launch and jousting tournament
Alnwick Castle, Northumberland — The Hogwarts Castle
Alnwick Castle is best known around the world for being the setting for Hogwarts in several of the Harry Potter films. The second largest inhabited castle in the country, it’s been home to generations of the same family for over 700 years. For Harry Potter families, this is the pilgrimage — the broomstick flying lessons are a genuine highlight that children talk about for years.
But Alnwick is far more than a film set. The State Rooms are spectacular, the archery demonstrations are excellent for older kids, and the adjacent Alnwick Garden — with its spectacular treehouse restaurant and poison garden — is worth a separate ticket. The castle is still lived in by the Duke of Northumberland, but it’s also open to the public.
Best for: Ages 5 and up, especially Harry Potter fans
Don’t miss: Broomstick training and the Alnwick Garden Treehouse
Practical note: Book tickets and activities in advance; combine with a walk to Bamburgh Castle on the coast
Tower of London — History With a Capital H
Right in the heart of the capital, the Tower of London is technically a castle — and one of the oldest and most dramatic in England. The oldest standing stone castle in England was founded in 1066 by William the Conqueror and has served as a royal palace, a notorious prison, the home of the Crown Jewels, and even a medieval zoo. The Yeoman Warder tours (the famous Beefeaters) are excellent for families — vivid storytelling, genuinely entertaining, and tailored to make even young children lean in.
The Crown Jewels are spectacular, the armory has enough swords and suits of plate armor to satisfy even the most demanding junior knight, and the stories of royal executions and famous prisoners give older kids rich historical context. It’s busier than almost anywhere else on this list, so book the earliest possible slot.
Best for: Ages 7 and up
Location: Central London, accessible by Tube to Tower Hill
Don’t miss: The Yeoman Warder tour and the Crown Jewels
Windsor Castle — A Working Royal Palace
Windsor Castle is the oldest and largest occupied castle in the world. Founded by William the Conqueror in the 11th century, it has served as a royal palace for over 900 years. It remains a working royal residence, which means it can close on short notice when the Royal Family is in residence — always check the website before you travel.
What’s open to visitors is genuinely impressive: the State Apartments are opulent, St. George’s Chapel is breathtaking (and the final resting place of several monarchs), and the changing of the guard is a spectacle children enjoy. Windsor itself is a lovely town for a post-castle afternoon, and it’s only 40 minutes by train from London Paddington — making it one of the easiest and most rewarding day trips from the capital.
Best for: Ages 6 and up
Location: Windsor, 40 minutes from London
Practical note: Check opening hours in advance before you buy your tickets; the castle can close with little notice
Bodiam Castle, East Sussex — The Storybook Moat Castle
For sheer photogenic impact, Bodiam Castle in East Sussex takes some beating. A perfectly square 14th-century fortress reflected in its wide water-filled moat, it looks exactly like the castle children draw at school. Managed by the National Trust, it’s significantly quieter than Warwick or the Tower but offers excellent family activity packs that turn the visit into an adventure quest. Kids can walk the ramparts, peer through arrow slits, and scramble up spiral staircases.
It’s less packed with programming than the big commercial castles, but that’s part of its charm — this is the one for families who want to explore at their own pace without queuing.
Best for: Ages 4 and up
Free with: National Trust membership
Don’t miss: The reflection in the moat at golden hour
Best Castles to Visit in Scotland
Scotland has over 2,000 castles — a staggering number for a country its size. Scotland’s castles reflect centuries of conflict, power and heritage that shaped the nation’s story. For families, the Scottish castle experience tends to be wilder, more atmospheric, and often less crowded than its English counterparts.
Edinburgh Castle — Fortress Above the Capital
Set atop a craggy extinct volcano in the heart of Scotland’s capital, Edinburgh Castle is unquestionably Scotland’s most famous castle. This sprawling complex houses the Crown Jewels and Mons Meg. The One O’Clock Gun fires six days a week and never fails to make visitors jump — kids absolutely love it. The National War Museum, the Crown Jewels of Scotland (the Honours of Scotland), and the Stone of Destiny are all genuinely engaging for families with children aged 8 and up.
Arrive early — this is one of the UK’s most-visited attractions and the queues grow fast. The hilltop position means wind and cold even in summer, so pack a layer. The views over the city from the ramparts are extraordinary.
Best for: Ages 7 and up
Don’t miss: The One O’Clock Gun and the Crown Jewels
Practical note: Book a tour in advance; busiest in July and August
Eilean Donan Castle — Scotland’s Most Iconic Image
Eilean Donan has to be one of the most photographed castles in the world with a site history that dates back to 643 AD. It boasts a romantic setting on an island at the entrance of Loch Duich, surrounded by the forested mountains of Kintail. You’ve seen it on a thousand postcards and it still takes your breath away in person.
The castle visit is very much alive and that makes a ton of difference in entertaining the young ones. Start with the multimedia historical movie at the entrance. Follow the tour to a series of inner courtyards leading to the reception rooms of the castle. If they don’t look dusty, it’s because the castle is still lived in and used by the MacRae clan for formal gatherings.
Eilean Donan is a natural stop on any Highland road trip, particularly on the route toward the Isle of Skye. Combine it with Loch Ness and Glenfinnan for a classic Highland day.
Best for: Ages 5 and up
Location: Kyle of Lochalsh; ideal stop en route to Skye
Don’t miss: The view from the bridge at dawn or dusk
Stirling Castle — Where Scotland’s History Was Made
Meticulously restored to its original Renaissance glory, Stirling Castle was the favoured residence of the Stewart kings and queens. Highlights include the Great Hall, Chapel Royal and Tapestry Studio. It’s also a great place to bring the family — the kids will love meeting costumed courtiers, bodyguards and servants!
Mary Queen of Scots was crowned here as an infant. William Wallace fought for control of the nearby bridge. The castle sits at the geological gateway between the Scottish Lowlands and Highlands, making its strategic importance instantly legible from the battlements. It’s slightly less visited than Edinburgh Castle, which means shorter queues and a slightly less frantic pace — often the better choice for families with younger children. Check out this Stirling Castle, Kelpies, and Loch Lomond tour.
Best for: Ages 6 and up
Don’t miss: The costumed characters and the Great Hall
Nearby: The Wallace Monument is a 10-minute drive and perfect for older kids
Best Castles to Visit in Wales
Wales has more castles per square mile than anywhere else in the world — over 600 in a country smaller than Massachusetts. Edward I built a ring of fortresses here in the 13th century that are now collectively a UNESCO World Heritage Site. For families doing a Wales castle trail, the north is the motherlode.
Caernarfon Castle — The Crown Jewel of Welsh Castles
Wales is not short of impressive castles to visit with kids, but this fortress built by Edward I is easily the most impressive — the gigantic project took 47 years, with town walls built at the same time as Caernarfon Castle, costing a medieval fortune: £25,000.
The Eagle Tower exhibition uses interactive displays that keep kids engaged. The Castle Quest trail turns the whole visit into a guided discovery experience with puzzles and challenges. The Little Dragons game weaves in Welsh mythology that young children find captivating. The surrounding town walls — which you can walk — add extra exploration time. Caernarfon also hosts a full calendar of family events throughout the year.
Best for: Ages 4 and up
Don’t miss: The Castle Quest trail and the view from Eagle Tower
Nearby: Conwy Castle and Beaumaris for a North Wales castle trail day
Caerphilly Castle — Wales’s Biggest
Caerphilly Castle is the biggest castle in the country. Only Windsor Castle is bigger in the whole of Britain. Which means you have a whopping 30 acres to explore, from the massive walls and towers to the water defences of this 13th century fortress. It also features the Dragons’ Lair — an audio-visual display with smoke and sound that brings a family of Welsh dragons to life. Kids love it.
Caerphilly is just outside Cardiff, making it an easy half-day addition to a capital city trip. Entry is managed by Cadw (Welsh heritage body), and private tours represent excellent value.
Best for: Ages 4 and up
Don’t miss: The Dragons’ Lair and the moat
Location: 8 miles north of Cardiff; easy day trip from the capital
Harlech Castle — Dramatic Coastal Ruins
Perched on a sheer cliff overlooking Snowdonia and Cardigan Bay, Harlech Castle offers some of the most jaw-dropping views of any castle in Britain. The climb to the top rewards families with panoramas that stretch to Ireland on a clear day. Explore the dramatic ruins of Harlech Castle through immersive storytelling, Knight School and staged battles, all with a backdrop of Snowdonia.
Consider this 5-day Wales tour, which includes Harlech Castle.
Best for: Ages 5 and up (good mobility required for the climb)
Don’t miss: The view from the top and the Knight School activities in season
Best Castles to Visit in Ireland
Ireland takes a slightly different approach to castles than the rest of the UK — the island has an estimated 30,000 castle ruins and fortifications, ranging from grand medieval fortresses to small tower houses. Here are the picks your family will love most.
Blarney Castle, County Cork — The Famous Stone
Built nearly six hundred years ago by one of Ireland’s greatest chieftains, Cormac MacCarthy, Blarney Castle has been attracting attention ever since. Most visitors come for the Blarney Stone — the legendary Stone of Eloquence, which supposedly grants the gift of eloquent speech to whoever kisses it. (You have to lean backwards over a sheer drop to do it. Kids think this is fantastic. Some parents disagree.)
But the grounds are extensive and genuinely beautiful beyond the stone itself. There’s a Poison Garden, a Rock Close with druidic stone formations and a wishing well, walking trails through ancient woodland, and two waterfalls. The castle is stunning, it makes for fantastic photo opportunities and has some gorgeous gardens that make a stop worth it no matter what.
Best for: All ages; the stone kissing suits ages 8 and up
Location: Blarney village, 10 minutes from Cork city; check out this Blarney Castle & Kinsale Half Day Tour from Cork
Don’t miss: The Poison Garden and the Rock Close
Kilkenny Castle — City Castle With a Playground
With open parklands perfect for a picnic, an amazing playground nearby, and beautifully restored interiors, Kilkenny Castle is one of the favourites for a relaxed family day out. Located right in the heart of Kilkenny’s medieval city, the castle is surrounded by beautiful grounds where kids can run freely, and the long art gallery inside is pram-friendly.
Kilkenny itself is an exceptionally charming city to explore — medieval streets, independent shops, and excellent food. The castle-plus-city combination makes for an ideal full family day, and the surrounding area is rich with other attractions including Dunmore Caves (stalactites, stalagmites, and 700 steps underground — a family hit).
Best for: All ages
Don’t miss: The grounds and playground; the medieval streetscape of Kilkenny
Nearby: Rock of Cashel (45 minutes), Dunmore Caves (15 minutes)
King John’s Castle, Limerick — Interactive History
The 13th-century King John’s Castle has recently undergone extensive renovations in order to provide a comprehensive cultural and learning experience for tourists and locals alike. A visitors’ centre offers an interactive experience which both kids and adults will appreciate: touch screen displays, costumes and live historical re-enactments are just some of the ways in which the history and lore of this famous castle are brought to life.
Sitting on King’s Island in the heart of medieval Limerick, it’s one of the best-programmed castles in Ireland for families. The interactive exhibits are genuinely child-friendly rather than just adult history dressed up with buttons.
Best for: Ages 5 and up
Location: King’s Island, Limerick city centre
Free Castles to Visit in the UK — Saving Money Without Missing Out
Family days out are expensive. The good news is that the UK has a generous supply of free castles to visit, whether through open-access ruins, membership schemes, or heritage organizations.
English Heritage membership is excellent value if you’re planning to visit multiple sites. English Heritage looks after over 400 historic places, and remarkably, 250 of those are free to visit. Free English Heritage properties include Porchester Castle (Hampshire), Peveril Castle (Peak District), and dozens of atmospheric ruins across the country. Annual membership pays for itself quickly if you’re visiting England for more than a week.
National Trust membership covers Bodiam Castle in East Sussex, Corfe Castle ruins in Dorset, and several other castle sites as part of a broader portfolio of historic properties.
In Wales, Caerphilly Castle and several Cadw properties offer free or heavily discounted entry for children under a certain age — always check the Cadw website before visiting.
In Scotland, Bothwell Castle in South Lanarkshire, Scotland’s largest and finest 13th-century castle, provides free access to its grounds. Skipness Castle on the Kintyre Peninsula and Hailes Castle in East Lothian also offer free ground access. The ruins of Dunnottar Castle on the Aberdeenshire coast — which inspired Disney’s Brave — charge a small entry fee but represent extraordinary atmospheric value.
Heritage Open Days in England in September open thousands of historic buildings, including castle properties, for free public access. Keep an eye on the Heritage Open Days website and your local area listings in August for advance bookings.
Pro tip for Ireland: Office of Public Works (OPW) sites — which include several Irish castles — offer free admission on the first Wednesday of every month. The Rock of Cashel falls under this scheme, making it possible to combine a free Rock of Cashel visit with nearby Cahir Castle (also OPW) for a very affordable Tipperary castle day.
Top 10 Castles to Visit in the UK: The Family Shortlist
If you’re looking for a quick hit list of the top 10 castles to visit in the UK with kids, here’s how we’d rank them for all-round family experience:
- Warwick Castle, England — Best overall family castle experience
- Edinburgh Castle, Scotland — Best urban castle; unmissable
- Alnwick Castle, England — Best for Harry Potter fans
- Caernarfon Castle, Wales — Best for Welsh history and Castle Quest trail
- Eilean Donan Castle, Scotland — Best for scenery and atmosphere
- Tower of London, England — Best for older kids and royal history
- Caerphilly Castle, Wales — Best for young children (space, dragons, free parking)
- Blarney Castle, Ireland — Best for grounds and the Blarney Stone experience
- Bodiam Castle, England — Best for the classic moat-and-towers storybook look
- Stirling Castle, Scotland — Best for costumed history and Scottish national story
Every single castle on this list offers something genuinely memorable for families. The right one for your trip depends on your kids’ ages, your location in the UK, and whether you’re after full-day entertainment or atmospheric exploration at your own pace.
Practical Tips for Visiting UK Castles With Kids
Book online. Major UK castles sell out in summer, particularly Warwick, Edinburgh, Alnwick, and the Tower of London. Don’t wing it — buy tickets before you leave the house.
Get there early. The first hour after opening at any major castle is significantly less crowded. By mid-morning in peak season, the car parks are full and the queues are real.
Pack layers. This is the UK. Even in August, a castle on a hilltop or coastal cliff will be cold. Wind is the enemy of the under-prepared castle visitor.
Use National Trust and English Heritage memberships. If you’re spending more than a week exploring UK history, membership in both organizations will likely pay for itself and saves the endless “should we go in?” calculation at the gate.
Let kids lead. The dungeon your eight-year-old wants to explore for 20 minutes might feel like a detour. It’s also the thing they’ll describe in vivid detail to their class on Monday morning. Lean into it.
Check seasonal closures. Many smaller UK castles have limited winter hours or close entirely in January and February. Always verify opening times on the official website before a long drive.
The UK’s castles are among the greatest family travel assets anywhere in the world. From Scotland’s wild Highland fortresses to Wales’s extraordinary density of medieval strongholds, England’s royal showpieces to Ireland’s atmospheric ruins, there’s a castle perfectly suited to every family, every age, and every budget. Start with one. You’ll be planning the next visit before you’ve driven out of the car park.
Interested in castles beyond the UK? Check out our guide to the best castles to visit in Europe with kids.
