Dolwyddelan Castle Dolwyddelan, Conwy, LL25 0JD Retail Phone Number Phone Number icon for Snowdonia retail page 01690 750366 Retail Screen Screen icon for Snowdonia retail page http://cadw.gov.wales/daysout/dolwyddelan-castle/?lang=en Snowdonia Facebook Page Facebook icon for Snowdonia Facebook page Facebook Snowdonia Twitter Page Twitter icon for Snowdonia Twitter page Twitter Snowdonia Pinterest Page Pinterest icon for Snowdonia Pinterest page Pinterest Snowdonia Youtube Page Youtube icon for Snowdonia Youtube page Twitter A stunning 13th Century fortress, buiilt by Llywelyn Fawr, the Prince of Gwynedd, and ruler of most of Wales, Dolwyddelan Castle stands on a craggy outcrop in the scenic Lledr valley between Betws-y-Coed and Blaenau Ffestiniog. Awards