Nendrum Monastery
Nendrum Monastery was founded in the 5th or 6th century on Mahee Island in Strangford Lough. The name Mahee comes from St Machaoi, the founder of the monastery. It suffered at the hands of the Vikings (who changed the name of Loch Cuan to Strangford Lough) and when John de Courcy arrived in Ulster he converted the monastery to an order of Benedictine monks. The remains consist of three concentric cashels with the church and tower (pictured) within the central cashel, the tower was one of the 4 sites of ecclesiastic towers in County Down.
The site has the oldest excavated tide mill race in the world, which has been dated at AD619.









