Penrhyn Castle Railway Museum

Steam engines and slate wagons fill this compact railway museum at the grounds of Penrhyn Castle near Beaumaris. The collection focuses on the industrial heritage of North Wales, with restored locomotives that once hauled slate from the local quarries down to the coast.

You'll find the famous Fire Queen, a narrow-gauge engine that worked the Penrhyn Quarry Railway for decades. Kids love clambering around the restored carriages and peering into the cab windows. The whole visit takes about 45 minutes unless you've got proper railway enthusiasts in tow - then you might be there twice as long.

Free entry makes this a proper bargain, especially if you're already visiting the castle itself. The museum works well as a quick add-on rather than a destination in its own right. Railway buffs will appreciate the technical details and historical context, while families get a decent dose of industrial heritage without the hefty price tag.

Location-wise, it's handy for those staying at nearby parks like Kingsbridge Caravan Park or Tros Y Waen. The museum sits in the shadow of Penrhyn Castle's impressive towers, so you're getting castle views thrown in for free. Worth combining with a trip to Beaumaris if you're making a day of it on this part of Anglesey.