Iolo Williams visits Coed Craig Ruperra, an ancient woodland near Caerphilly, which was destroyed to meet the post-war demand for wood. For over 70 years, dense conifer forest smothered the hillside and stifled the wildlife. In 2000, a group of locals formed a volunteer trust and bought the 150 acre site above Ruperra castle, determined to return it to its former glory. The volunteers meet regularly to clear the bracken, bramble and voracious cherry laurel, and slowly but surely the wildlife is returning.