Aberystwyth

The remains of a Celtic fortress on Pen Dinas (or more correctly ‘Dinas Maelor’), a hill in Penparcau overlooking Aberystwyth, indicates that the site was inhabited before 700 BC. On a hill south of the present town, across the River Ystwyth, are the remains of a medieval ringfort believed to be the castle from which Princess Nest was abducted. This rare survival is now on private land and can only be accessed by arrangement.