Weatherman Derek Brockway enjoys a series of walks around Wales. This walk takes Derek to the Berwyn Mountains, where he walks from Llangynog to the Pistyll Rhaeadr waterfall. Show more
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Weatherman Derek Brockway enjoys a series of walks around Wales. This walk takes Derek to the Berwyn Mountains, where he walks from Llangynog to the Pistyll Rhaeadr waterfall. Show more