Melin Llynon

Standing windmill sails catch the Anglesey breeze just as they did when this restored 18th-century tower mill ground corn for local farmers. Melin Llynon is Wales' only working windmill, and watching the massive stones turn grain into flour feels properly authentic - none of that heritage centre polish you get elsewhere.

History enthusiasts will love the guided demonstrations, though families might find the technical explanations drag on a bit. The mill operates Thursday to Sunday, and you'll want to time your visit for when the wind's up - there's not much point seeing a static windmill. Allow an hour, maybe 90 minutes if you're really into the mechanics.

From Holyhead, it's a short drive inland, making it a decent wet-weather option if you're staying at one of the coastal parks like Sandy Beach or Penrhyn Bay. The surrounding countryside is lovely for a walk, and there's often fresh flour for sale - proper sourdough starter material.

Kids under ten might get restless after the initial novelty wears off, but older children often find the engineering fascinating. The miller knows his stuff and doesn't mind questions. It's not going to fill a whole day, but as part of an Anglesey tour, this working piece of industrial heritage adds substance to your holiday beyond beaches and castles.