St Cwyfan was a disciple of St Beuno who made his church close to the formidable high waterfall at Dyserth near Rhyl in North Wales. ‘Dyserth’ means ‘a desert place’ and indicates a hermit’s dwelling. There is a holy well there also. He also has a church at Llangwyfan near Aberffraw in South West Anglesey typically on a very small headland now surrounded by the sea.
