Cwmgiedd Park

The walk into Cwmgiedd Park proper is what catches you first - a steep descent through broadleaf woodland that frankly tests your knees on the way out. But that's the whole appeal of this nature reserve in Powys. You're not coming here for a leisurely stroll round tame paths; you're coming to see something proper wild.

Once you're down in the valley, the payoff is real. The park protects a section of woodland and stream habitat that feels genuinely removed from the usual tourist circuit. Bird watchers do well here, and if you're into fungi or wildflowers depending on the season, you'll have decent things to spot. The stream itself is clear enough to wade in if you're up for it, which keeps kids entertained for a good hour or so.

It's free to walk round, which is the thing - no gates, no turnstiles, no gift shop. Just turn up. The Brecon Beacons Camping & Caravan Park sits only 4.6 miles away if you're basing yourself in the area for a proper outdoor week. Swansea's your nearest town for supplies, though it's not particularly close.

Truth is, this isn't the sort of place you'd drive to from London just for the afternoon. But if you're already exploring the Brecon Beacons region, it's worth the detour - especially if you've got older kids or serious naturalists in tow. Allow two hours minimum, longer if you're unhurried.