Pentwyn

The walk up Pentwyn is properly steep, and it'll take the best part of an hour if you're not used to this sort of thing. The peak sits just south of Brecon in Powys, and from the top you're looking across the Beacons in one direction and back towards the town in the other - it's a cracking spot if the weather cooperates, which round here is half the battle.

You'll want proper boots for this. The path is well-trodden but muddy in places, and there are sections where the gradient doesn't mess about. It's not a ramble for young kids unless they're keen walkers already, though teenagers with some fitness will manage fine. The real draw is the views and the sense you've actually done something to earn them - no doddle to the top here.

It's free to walk, obviously. Allow two hours for the round trip if you're taking photos and catching your breath. Early morning is your best bet for clear skies, though the walk's doable any time the light's decent.

If you're based at one of the nearby campsites - Pencelli Castle and Cefn Cantref are both within five miles - this makes a solid morning hike before you head elsewhere in the Beacons for the afternoon. Combines well with a gentler walk elsewhere if you don't want to push yourself two days running. Not a long expedition, but a proper little mountain nonetheless.