Inside the Castle
The Royal Welch Fusiliers Museum
Housed inside two of the castle's own towers, this regimental museum is included in your admission ticket and tells the story of one of the British Army's oldest infantry regiments.
What is the Royal Welch Fusiliers Museum?
The museum tells the story of the Royal Welch Fusiliers, one of the oldest infantry regiments in the British Army, tracing over 300 years of service. It's housed within two of Caernarfon Castle's own towers, giving the collection an unusually atmospheric setting compared to a purpose-built museum building.
Is it included in castle admission?
Yes. Entry to the museum is free once you've paid for admission to the castle — there's no separate ticket to buy. Cadw members can enter both the castle and the museum for free, as part of their standard membership.
What's inside
Expect uniforms, medals, weapons and regimental artefacts spanning the regiment's history, along with displays on its unique traditions. The Royal Welch Fusiliers is well known within military history circles for retaining several distinctive customs not shared by other regiments — the kind of detail that rewards visitors who take their time rather than rushing through.
Practical notes
The museum sits within the same historic stonework as the rest of the castle, so the same accessibility considerations apply — see our accessibility guide for detail on stairs and terrain. Allow 20–40 minutes if military history is a specific interest of yours, or a shorter look if you're moving through as part of a broader castle visit.
Cadw official visitor information for Castell Caernarfon. For the museum's own detailed information, opening arrangements independent of the castle, and collections, see the Royal Welch Fusiliers Museum's own website ↗, which we are not affiliated with.