Ogof Ffidler

Finding Ogof Ffidler takes a bit of detective work - it's not signposted from the main road, and there's precious little information online. Located near Ty Croes on Anglesey, this small cave sits in limestone country where the landscape drops away suddenly, revealing Wales' geology in raw form.

The cave itself is modest in scale, which means you won't need specialist kit or a guide to have a proper look around. It's the kind of place that rewards curiosity rather than demanding serious caving experience. The entrance is straightforward enough, and once inside you get a real sense of how water has carved through rock over millennia. Bring a torch - a decent one, not your phone's weak attempt - and wear shoes with grip.

This works best for families with older kids or keen walkers who fancy something different from the usual cliff-path routes around Anglesey. Young children might find it underwhelming unless they're genuinely into caves. Allow 30 to 45 minutes if you're taking your time and actually looking at the formations rather than just poking your head in.

It's free to visit, which is the main appeal frankly. Several caravan parks sit within a five or six-mile radius - Llanfair Hall, Y Fronydd, and Morfa Lodge are all reasonable bases for exploring this corner of Anglesey. If you're staying somewhere like Plas or Bodfan Farm, you're close enough to add this to a morning's wandering without it eating into beach time or coastal walks. Worth the detour if you're already in the area, but don't plan your whole trip around it.