3. Harlech BeachHarlech Harlech is a seaside resort and community in Gwynedd within the historic boundaries of Merionethshire in north-west Wales. It lies on Tremadog Bay in the centre of Gwynedd, within the Snowdonia National Park. Of a population of 1,447, 51 per cent habitually speak the Welsh language. Its best-known landmark, Harlech Castle, was begun in 1283 by Edward I of England, captured by Owain Glyndŵr, and later served as a stronghold for Henry Tudor. It was built next to the sea, but coastline changes mean it now lies on a cliff face, about half a mile inland. The town has developed housing estates in the low town area and hillside housing in the high town around the shopping street, church, and castle. The two are linked by a steep, winding road called Twtil. From Wikipedia, the free encyclopedia.