The best example in Northern Ireland of a pre-Norman monastic enclosure

Nendrum is thought to have been set up by St Machaoi in the 5th Century and also has links to St Patrick in later sources. The monastery consists of 3 round dry stone walled enclosures, one within the other. There is evidence of industrial works in the outer enclosure; a central enclosure with a church ruin and sundial, the remains of a round tower and a graveyard. The middle enclosure has the remains of huts and workshops. It is thought to be the best example of a pre-Norman monastic site in Northern Ireland.

There is a Visitor Centre which houses interactive and graphic displays, models, artefacts and videos. (Closed 2021) 

The site is not suitable for disabled access.

No unaccompanied children under the age of 16yrs.

Opening Times

  • Access to the site is available all year round.


  • Free

Contact Details

  • Address Nendrum Monastic Site Mahee Island, Ringneill Road Comber Down BT23 6EP
  • Telephone 028 9082 3207
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