Ynys Llanddwyn or Llanddwyn Island is a small tidal island off the west coast of Anglesey, North Wales. The nearest town is Newborough.
Coordinates: 53°08′31″N 4°24′29″W / 53.142°N 4.408°W / 53.142; -4.408
Read more about Ynys Llanddwyn: Geology and Geography, Saint Dwynwen, Footpaths, Lighthouse, Time Line, Llanddwyn Island in Film, Photos of Llanddwyn