The monastic ruins at Nendrum on Mahee Island date from the 11th century. The ruins include a tiny church, round buildings and the base of a round tower, Near the church there is an old sundial.

The site is managed by Environment and Heritage Service and has an interpretative centre.

Here, you are mid-way along Strangford Lough on the western side. You can make out the Ards Peninsula on the skyline across the water to the east.

This part of the Lough has many islands. Some are linked to the mainland and each other by causeways.

Nendrum is situated on land that is essentially a string of linked islands.

To get to Nendrum you cross a causeway past Reagh Island and on to Mahee. From Nendrum, looking eastwards, Reagh Island appears to the left of view and Mahee stretches to the right.

Sketrick Island, Rainey Island, Wood Island, Long Island, and Rolly Island lie to the west.

The rounded "drumlin" topography of these islands and the surrounding countryside arose from the end of the last ice age, when glacial deposits were left behind as the glaciers retreated.