Cronfa Llwyn-on

You're looking at one of Wales' most significant Iron Age hillforts, and it takes proper effort to reach it - which is precisely why you'll have the place largely to yourself. Cronfa Llwyn-on sits high in the Powys landscape, commanding views across Mid Wales that make the climb entirely worth your legs aching the next morning.

The fort itself is a ring of earthwork defences, still remarkably well preserved after two millennia. Walk the perimeter and you can trace the ancient builders' logic - choosing this elevated position was no accident. The views down into the valleys tell you everything about why Iron Age communities settled here. On a clear day, it's properly spectacular.

This is one for walkers and history buffs rather than casual visitors. You'll need decent boots, a map or GPS, and realistic expectations - there's no visitor centre, no café, no interpretation boards. Just you, the archaeology, and the wind. Allow a good two hours if you're coming from Neath, which sits five miles away as the crow flies but considerably further by road.

It works brilliantly as part of a wider walking holiday in the area. The nearby Four Falls Glamping site makes a comfortable base if you're planning multiple forays into the Powys hills. This isn't a quick tick-box attraction - it's the kind of place that stays with you because you've actually had to earn the view.