Waun Mawn Standing Stone

You'll need a proper map and sturdy boots to find this one. Waun Mawn Standing Stone sits alone on the Preseli Hills above Newport, a Bronze Age marker that's been watching over Pembrokeshire for something like 4,000 years. The stone itself isn't huge - nothing like Stonehenge - but the walk to reach it across moorland feels genuinely remote, which is half the appeal.

What you're actually doing here is standing on a windswept ridge, taking in views that stretch towards Cardigan Bay, with just one weathered stone and the weather for company. It's the kind of place that rewards walkers and history types who don't need visitor centres or interpretation boards to feel the weight of age. Allow two hours for the return walk from the nearest approach road - the terrain is boggy and the paths aren't obvious, so this isn't a casual stroll.

Families might find it underwhelming if they're expecting something more obviously impressive, but teenagers who enjoy hiking will get it. There's no entrance fee because there's nowhere to collect one - it's just there, free and unmanaged.

Stay at Llwyngwair Manor Holiday Park, only 3.5 miles away, or Trewrach Glamping if you want something with more atmosphere. You could easily combine this with beach walks around Newport itself, though in truth, the real magic is in reaching this exposed corner of the Preseli uplands without the crowds.