‘On arrival, passengers are still smitten by the Mynach Falls crashing into the gorge beneath the gloriously gothic Devil’s Bridge, which has more than a dash of the Victorian sublime. More importantly, this woodland is (save for the odd rhododendron) little changed since the retreat of the glaciers. Preserved by its vertiginous slopes, slender birch and lichen-fissured sessile-oaks with epiphytes a-tremble, still reach for the light, just as they did 10,000 years ago when pine martens were abundant.’

Read more in the November edition of BBC Countryfile Magazine