Gwynedd, county of northwestern Wales, extending from the Irish Sea in the west to the mountains of Snowdonia in the east. It encompasses most of the historic counties of Caernarvonshire and Merioneth. Caernarfon is its administrative centre. Caernarfon
Conwy, county borough, northwestern Wales, along the Irish Sea. Conwy’s coast includes the rugged headlands of Penmaenmawr and Great Orme’s Head along with a low-lying strip reaching east to the mouth of the River Clwyd. From the coast the county borou