Castles in Wales 2026: The Complete Guide to Over 600 Fortresses
Wales has more castles per square mile than any other country in the world.
The total count sits at over 600 — from ruined hillforts to fully restored medieval fortresses.
This guide covers the best Welsh castles to visit in 2026, organised by region, with opening times, prices, and postcodes.
How Many Castles Are There in Wales?
Wales has over 600 castles. That makes it the most castle-dense nation on Earth.
The exact number depends on how you count. Cadw, the Welsh government’s historic environment service, maintains around 130 in state care. The full figure of 600+ includes ruined towers, earthwork mottes, fortified manor houses, and privately owned estates.
Most were built between 1067 and 1415. The Norman conquest of Wales triggered a castle-building programme on a scale Europe had rarely seen.
Edward I’s Iron Ring — built after 1277 — is the most famous chapter. Eight castles constructed in just 40 years. Beaumaris, Caernarfon, Conwy, Harlech, Rhuddlan, Flint, Aberystwyth, and Builth. Seven of these survive today in some form.
The Best Castles to Visit in North Wales
North Wales holds the greatest concentration of major medieval fortresses in Wales.
Most are managed by Cadw and charge entry. The Cadw Explorer Pass covers unlimited entry to over 130 sites — good value if you plan to visit three or more in a week.
Caernarfon Castle — LL55 2AY
The most powerful castle in Wales. Edward I built it from 1283, inspired by the Theodosian walls of Constantinople. The coloured stone banding and polygonal towers were a deliberate piece of political theatre.
Entry approximately £14 adults, £10 concessions — verify at cadw.gov.wales. Open year-round.
Conwy Castle — LL32 8AY
Eight massive towers connected by a curtain wall 1,400 metres long. Built in just four years from 1283. The medieval town walls are still intact and you can walk them for free.
Entry approximately £12.50 adults.
Read the full guide at wales.org/conwy-castle/.
Beaumaris Castle — LL58 8AP
The last and most technically perfect castle Edward I ever built. Started in 1295, never finished. The concentric design — rings within rings — was so advanced that no army could have taken it by force. A UNESCO World Heritage Site.
Entry approximately £9 adults. Located on the Isle of Anglesey, 20 minutes from the Menai Bridge.
Harlech Castle — LL46 2YH
Perched on a 60-metre rock above Tremadoc Bay. Built between 1282 and 1289. The song “Men of Harlech” commemorates a seven-year siege that ended in 1468.
Entry approximately £10 adults. The views west to the Llŷn Peninsula and Cardigan Bay are exceptional.
Rhuddlan Castle — LL18 5AD
First of Edward I’s concentric castles in Wales, started 1277. Smaller than Conwy or Caernarfon but historically significant — the Statute of Rhuddlan (1284) formally annexed Wales to England here.
Entry free. Managed by Cadw, open during daylight hours.
North Wales castle tours including Caernarfon and Conwy
The Best Castles to Visit in South Wales
South Wales castles tell a different story to the north. Many were built by Marcher Lords — Anglo-Norman nobles who controlled the borderlands between England and Wales.
Caerphilly Castle — CF83 1JD
The largest castle in Wales and the second largest in Britain after Windsor. Built from 1268 by Gilbert de Clare. Covers 12 hectares including an artificial lake system used as a defensive moat.
The famous leaning tower tilts at a sharper angle than the Tower of Pisa. New digital exhibits opened in 2026. Entry approximately £12 adults.
Cardiff Castle — CF10 3RB
2,000 years of history in one site. Roman fort beneath, Norman motte on top, Victorian Gothic apartments built by the Marquess of Bute in the 1860s. The State Apartments are extraordinary — no photograph does them justice.
Entry approximately £16 adults including apartments tour. Full guide at wales.org/cardiff/.
Raglan Castle — NP15 2BT
The finest late-medieval castle in Wales. Built in the 1430s as a statement of wealth, not just military strength. The Great Tower (Yellow Tower of Gwent) stood until the Civil War, when Parliamentarian forces spent 13 weeks reducing it by cannon fire.
Entry approximately £8.50 adults. Located 10 miles from Abergavenny, postcode NP15 2BT.
Pembroke Castle — SA71 4LA
Birthplace of Henry VII in 1457. The round keep — 23 metres tall, walls 4 metres thick — is one of the best preserved Norman towers in Britain. The Great Hall hosts living history events through summer.
Entry approximately £10 adults.
Full guide at wales.org/pembrokeshire/.
Chepstow Castle — NP16 5EY
The oldest surviving post-Roman stone fortification in Britain. Work began in 1067 — within a year of the Norman conquest. Positioned on a 30-metre cliff above the River Wye, with full guide at wales.org/wye-valley/.
Entry approximately £8 adults. Cadw managed.
Castles in West Wales: Pembrokeshire to Ceredigion
West Wales is castle country in a different sense. The landscape here is wilder, and many of the fortresses are dramatically sited on coastal promontories or river cliffs.
Carreg Cennen Castle — SA19 6UA
The most dramatically positioned castle in Wales. It sits on a 100-metre limestone crag in the Brecon Beacons, visible for miles across the Black Mountain. A working farm at the foot of the hill runs a tea room and car park.
Entry approximately £7 adults. The cave passage beneath the castle is accessible with a torch.
Full guide at wales.org/carmarthenshire/.
Cilgerran Castle — SA43 2SF
Two huge circular towers above the Teifi Gorge. Turner painted it twice. The RSPB cormorant colony on the river below adds unexpected wildlife watching to the visit.
Entry approximately £5.50 adults. 3 miles from Cardigan, off the A478.
Kidwelly Castle — SA17 5BQ
One of the best-preserved Norman castles in Wales. The round towers and gatehouse remain largely intact. The BBC filmed scenes here for various period dramas.
Entry approximately £7 adults. Located in the town of Kidwelly, Carmarthenshire.
Mid Wales and Marches: Border Castles and Hidden Fortresses
Mid Wales saw some of the fiercest fighting between Welsh princes and Norman lords. The castles here are often less visited but no less impressive.
Powis Castle — SY21 8RF
Not a ruin — Powis is a fully lived-in castle in the care of the National Trust. The medieval fortress contains the finest collection of Clive of India artefacts in the world. The hanging gardens, carved into the hillside in four terraces, date from the 1680s and are unlike anything else in Wales.
Entry approximately £19 adults including gardens. Near Welshpool. Full guide at wales.org/powys/.
Montgomery Castle — SY15 6HH
A ruined castle on a ridge above the elegant Georgian town of Montgomery. Free to enter. Views extend 20 miles east into Shropshire on a clear day.
Managed by Cadw. The town below has excellent independent cafés and a three-star hotel.
Dolwyddelan Castle — LL25 0JD
Said to be the birthplace of Llywelyn the Great, Wales’s most powerful medieval prince. The rectangular tower stands largely intact on a volcanic crag above a glacial valley.
Entry approximately £5.50 adults. Located 5 miles from Betws-y-Coed on the A470.
Planning Your Welsh Castle Visit: Tickets, Passes and Tips
The Cadw Explorer Pass gives unlimited entry to over 130 historic sites across Wales.
A 3-day pass costs approximately £30 adults, £22 concessions, £75 family. A 7-day pass costs approximately £42 adults. Prices correct at time of writing — verify at cadw.gov.wales before booking.
Most Cadw castles are closed Christmas Day and New Year’s Day. Winter hours (October to March) are typically shorter — check individual sites before travelling.
Parking at major castles costs £2–£5. Caernarfon and Conwy have town centre car parks nearby. Harlech and Beaumaris have smaller on-site car parks that fill early in summer.
Dogs are welcome at most Cadw sites but must be kept on leads. Pembroke Castle and Caerphilly Castle are exceptions — check their individual policies.
Castles You Can Stay In Overnight
Several Welsh castles offer accommodation inside their walls or in converted buildings within the grounds.
Fonmon Castle in the Vale of Glamorgan (CF62 3ZN) operates as a wedding and events venue with overnight stays available. Gwrych Castle in Abergele is currently under restoration.
For a full guide to staying overnight in Welsh castles, see wales.org/castle-hotels/.
Welsh Castles for Families: Best for Children in 2026
The best family castle experiences in Wales offer more than just walls to look at.
Caerphilly Castle runs family events throughout the year including summer siege days, jousting displays, and guided tours for children. The scale of the site — lakes, towers, tilting tower — is genuinely dramatic for children.
Beaumaris Castle has an interactive app guide designed for children and its moat is still water-filled, making it visually engaging for younger visitors.
Harlech Castle has open grassy areas within the walls and the gatehouse is accessible — children can explore the rooms and stairs freely.
Cadw’s junior explorer booklets are available free at the entrance to most major sites. They turn the visit into a trail with stamps to collect.
Frequently Asked Questions: Castles in Wales
How many castles are there in Wales?
Wales has over 600 castles, making it the most castle-dense country in the world. Cadw manages around 130 in state care. The full figure includes ruins, earthworks, and fortified manor houses.
What is the biggest castle in Wales?
Caerphilly Castle is the largest castle in Wales and the second largest in Britain after Windsor Castle. It covers approximately 12 hectares including its lake and water defences.
Which Welsh castles are UNESCO World Heritage Sites?
Four castles and town walls have UNESCO World Heritage status: Beaumaris, Caernarfon, Conwy, and Harlech — collectively known as the Castles and Town Walls of King Edward in Gwynedd, inscribed in 1986.
Is the Cadw Explorer Pass worth buying?
Yes, if you plan to visit three or more Cadw sites. A 3-day adult pass (approximately £30) covers entry to over 130 sites. Individual castle entry ranges from £7 to £14, so the pass pays for itself quickly on a dedicated castle trip.
What is the most dramatic castle in Wales?
Carreg Cennen Castle in Carmarthenshire is widely regarded as the most dramatically sited. It sits on a 100-metre limestone crag with views across the Black Mountain. Harlech Castle, perched above Cardigan Bay, is a close second.
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