Pant-y-wennol Cave

Underground adventure meets Welsh mythology at this lesser-known limestone cave system near Llandudno Junction. The name translates to 'Cave of the Swallows', though you're more likely to encounter bats than birds in the cool, damp passages that wind deep into the hillside. Getting there involves a proper scramble up rocky paths - definitely not pushchair territory - but the effort pays off with genuine spelunking rather than sanitised tourist caves.

Experienced cavers will appreciate the challenging routes deeper into the system, while families with older children can explore the more accessible entrance chambers. Bring head torches for everyone and waterproof clothing; the cave stays wet year-round and can be slippery underfoot. Allow at least two hours for a thorough exploration, though hardcore cavers could spend a full day mapping the furthest reaches.

This isn't a commercial operation with guided tours or gift shops - it's raw caving that requires common sense and preparation. Best avoided in wet weather when water levels rise dramatically. For those staying at nearby parks like Dinarth Hall or Tan Y Bryn Glamping, it makes an exciting alternative to the usual coastal walks around Conwy. Just don't expect your youngest to emerge looking anything like they did going in.