The ever-visible ragged arches and tumbledown walls of Dinas Brân mark the remnants of a short-lived 13th-century castle of which it was said 'there was not a mightier in Wales nor a better in England'. It was burnt by Edward I after it was surrended to him in advance of his invasion.
Its fabulous 360-degree views are well worth the 1½-hour return walk up the steep track (turn uphill at the taxidermist, cut up the steps on the other side of the canal, then follow the Offa’s Dyke Path arrows).