FAQ
Frequently asked questions
Every common question about Caernarfon Castle in one place — tap any question to expand the answer. Each links through to a fuller guide where one exists.
Is Caernarfon Castle worth visiting?
Yes, for most visitors — it's one of Britain's most architecturally significant castles and a UNESCO World Heritage Site. See our full editorial take for who will get the most out of it.
Is Caernarfon Castle National Trust or English Heritage?
Neither. It's managed by Cadw, the Welsh Government's own historic environment service. Full explanation on our Cadw vs National Trust page.
How long should I spend at Caernarfon Castle?
Most visitors spend 1.5–2.5 hours. See our visiting guide for a suggested route.
How much does it cost to visit Caernarfon Castle?
Adult admission was £15.60 in summer 2026 (£14.90 in the autumn/winter period), with discounts for children, students, seniors and families. See current tickets & prices.
What are the opening times for Caernarfon Castle?
Hours vary by season, from 9.30am–6pm in July–August to 10am–4pm in winter. Full schedule on our opening times page.
Who built Caernarfon Castle and when?
It was built for King Edward I, beginning in 1283, under his master mason James of St George. See our full history.
Why was Caernarfon Castle built?
To secure and administer Edward I's conquest of north Wales, as part of a network of castles that also included Conwy, Harlech and Beaumaris.
Are dogs allowed in Caernarfon Castle?
Assistance dogs only, April–October. From 1 November to 27 March, dogs on short leads are allowed on ground-floor areas. Full detail on our dog-friendly guide.
Is Caernarfon Castle accessible for wheelchair users?
Partially. The site is rated Level 4 'Strenuous' terrain by Cadw. The King's Gate normally has a lift to its upper levels, but this is temporarily out of service as of September 2026 — check our accessibility guide for the current status before visiting.
Where do I park for Caernarfon Castle?
The most convenient option is the pay-and-display car park at the Slate Quay waterfront, adjacent to the castle. See our parking guide.
What is there to do at Caernarfon Castle?
Climb the Eagle Tower, walk the battlements, visit the free Royal Welch Fusiliers Museum, and take in Cadw's changing programme of events. See plan your visit.
Is there a café at Caernarfon Castle?
There's a small pop-up stall serving light refreshments; the King's Gate café is currently closed. Most visitors eat in the town — see where to eat.
What county is Caernarfon Castle in?
Gwynedd, in north-west Wales.
Was Caernarfon Castle where Prince Charles was crowned?
Not crowned — invested. Charles (later King Charles III) was invested as Prince of Wales at Caernarfon Castle on 1 July 1969. Full story on our investiture page.
Is Caernarfon Castle a UNESCO World Heritage Site?
Yes, inscribed in 1986 as part of the 'Castles and Town Walls of King Edward in Gwynedd,' alongside Conwy, Harlech and Beaumaris castles.