Castle Farm Stone

You'll find yourself standing in front of a weathered stone circle on a hillside near Crickhowell, trying to work out exactly what you're looking at. Castle Farm Stone is a Bronze Age standing stone - just the one, really - but it's the kind of place that rewards the effort of finding it. The stone itself is modest by megaliths standards, nothing like Stonehenge's drama, but that's rather the point. This is the real Wales, not the postcard version.

The walk to it is straightforward enough, though you'll want decent boots if the ground's been wet. Once you're there, the views across the Black Mountains are genuinely worth standing about for. On a clear day you can see for miles - proper sense of why ancient peoples might have marked this spot as significant.

History types will get more from it than casual walkers, to be honest. There's not much signage and you'll need to do your homework beforehand to understand what you're looking at. Kids might find it a bit of a non-event unless they're already into archaeology. It's a twenty-minute detour maximum from Crickhowell itself.

If you're based at Cwmdu Campsite or Pencelli Castle - both cracking spots for a Powys holiday - this is the kind of thing to tick off on a morning walk rather than a destination in itself. Pair it with exploring Crickhowell's market town charm and the nearby walking routes, and it slots in nicely. Free access, no facilities, no crowds.