Prestatyn prɛˈstætɪn is a seaside town and community in Denbighshire, Wales. Historically a part of Flintshire, it is located on the Irish Sea coast, to the east of Rhyl. Prestatyn has a population of 19,085. The name Prestatyn derives from the Old English prēosta (the genitive plural of prēost 'priest') and tūn ('homestead'), and thus means 'the homestead of the priests'. It was recorded in the Domesday Book as Prestetone. Unlike similarly derived names in England, which generally lost their penultimate syllable and became Preston, the village's name developed a typically Welsh emphasis on the penultimate syllable and a modification of 'ton' to 'tyn', as also happened at Mostyn. There is evidence that the current town location has been occupied since prehistoric times. Prehistoric tools found in the caves of Graig Fawr, in the nearby village of Meliden, have revealed the existence of early human habitation in the area. The Roman bathhouse is believed to be part of a fort on the road from Chester to Caernarfon. However, much of "Roman Prestatyn" has been destroyed as houses have been built over unexcavated land. Prestatyn was included in the Domesday Book since it was at that time under English control. An earth mound, visible in fields to the east of the railway station, beyond Nant Hall, marks the site of an early wooden Prestatyn castle, probably built by the Norman Robert de Banastre about 1157, which was destroyed by the Welsh under Owain Gwynedd in 1167. The Banastre family then moved to Bank Hall in Lancashire. The town appears to have been primarily a fishing village for hundreds of years. The beginning and end of High Street today mark the location of two 'maenolau' (or manor houses) called Pendre (translated as "end of" or "top of town") and Penisadre ("lower end of town"). The town's population remained at less than 1,000 until the arrival of the railways and the holidaymakers in the 19th and 20th centuries. "Sunny Prestatyn" became famous for its beach, clean seas and promenade entertainers, and visiting for a bathe was considered very healthy by city-dwelling Victorians.