Conwy Castle

Conwy Castle is a towering medieval fortress in the heart of Conwy, built by Edward I and now managed by Cadw as one of Wales's most striking UNESCO World Heritage attractions. The curtain walls, towers and ground-floor chambers survive in remarkable condition, with paid admission required and seasonal opening hours throughout the year.

From 1 November to 28 February, dogs on short leads are welcome to explore the ground-floor levels alongside you — a proper winter day out when most castles shut their doors to four-legged visitors. From March to October, access is limited to assistance dogs only, so plan accordingly if you're visiting in the warmer months. Note that dogs are not permitted on the town wall walks at any time of year. A pay-and-display car park sits immediately outside the visitor centre, and Conwy itself is compact and walkable once you arrive.

The seasonal access window is specific, but if you're in North Wales during the colder half of the year, it's a rare chance to bring your dog inside a working piece of history rather than leaving them tied up outside.