21 Castles in Wales That a Local Says You Should Visit

Updated September 22, 2025
Ruthie Walters
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Exterior view of the Conwy Castle with the clear blue sky in the background

Wales is the land of castles, with more castles per square mile than anywhere in the world! This unique claim to fame makes visiting a castle one of the best things to do in Wales. With over 600 recorded castles in Wales, it can be hard to know which ones to visit. 
As a local to Wales and a castle fan, I will share with you the best castles to see. From Chepstow Castle, the oldest castle in Wales, to Roch Castle which was recently renovated into a luxury hotel, I’ll give you the castle low-down.
So, let this magical castle journey commence!

21 Best Welsh Castles
Caernarfon Castle
Step out onto a modern rooftop deck in this iconic seven-hundred-year-old fortress with stunning views.

Left: View from a tower in Caernarfon Castle

Rig...

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Ruthie is a freelance writer from Cardiff. She is passionate about sharing travel tips for Wales and is always excited to discover new Welsh destinations. When not exploring her home nation, she can be found in far-flung corners of Europe, or farther afield. Ruthie has a background in languages, communications and campaigning. She’s now pursuing her love of writing and writes about travel and other topics on her site Thought Bubbles.