Henllyn

You'll find Henllyn tucked into the Powys countryside near Builth Wells, a quiet reservoir that doesn't get the crowds you'd expect from water this size. It's the kind of place where you can actually hear yourself think - no theme park energy, just a proper lake surrounded by Welsh hills. The walk around it takes a solid couple of hours if you meander, and the water itself is calm enough to reflect the sky most days. Great for a morning outing before heading into Builth Wells for lunch.

Walkers get the most from Henllyn. The paths are straightforward, not punishing, and the views open up gradually as you go - that satisfying thing where each bend reveals something different. Families with younger kids will manage fine for an hour or so, though there's not much to actually do once you've circled the water, so don't expect them to entertain themselves all afternoon. Birdwatchers often make the trip; the place is quietly productive for spotting waterfowl.

There's no visitor infrastructure to speak of - no café, no facilities - so come prepared. Admission appears to be free, which is refreshing, though this feels like a place where you're expected to respect it quietly. Spring's good when the light's sharp and the banks aren't too muddy. If you're staying at Great House Farm or any of the nearby holiday pods and camping spots dotted around, Henllyn makes a decent half-day walking stop without eating up your whole afternoon.