St Cwyfan's Church - Credit: Wikimedia Commons
St Cwyfan's Church () is a Grade II*-listed medieval church in Llangadwaladr, Anglesey, Wales. Located on the small tidal island of Cribinau, it is popularly known as the "Little Church in the Sea" (or Eglwys fach y môr in Welsh). The church dates from the 12th century, with some renovations made in the 19th century. Read more on Wikipedia
Source: en.wikipedia.org