Marine Nature Reserve

Marine nature reserve (MNR) is a conservation designation officially awarded by a government to a marine reserve of national significance.

Lough Hyne, a marine lake off of County Cork, is Ireland's only marine nature reserve.

Marine nature reserves were introduced in the UK by the Wildlife and Countryside Act 1981, and were designed to conserve marine life and geological or physiographical features of special interest. They have similar status and protection to national nature reserves, but were specifically concerned with a marine environment, including both the sea and seabed.

In the UK, there are only three statutory MNRs: Lundy Marine Nature Reserve at Lundy Island (Bristol Channel), Skomer Marine Nature Reserve (Pembrokeshire) and Strangford Lough (County Down).

There is a non-statutory voluntary MNR at St Abbs Head, Berwickshire.

Schedule 12 of the Marine and Coastal Access Act 2009 allows the conversion the existing MNRs into the newer designation Marine Conservation Zones.

The Isle of Man government has designated a marine nature reserve in Ramsey Bay using Manx legislation.

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