Monach Islands

Site overview: The Monach Islands, off the Outer Hebrides, offer a wide area of largely undisturbed habitat for breeding grey seals. These islands hold the largest breeding colony in the UK, contributing over 20% of annual UK pup numbers. There is also another Marine Protected Area here which aims to protect the rich seabed.

Designation Status
Last Updated
6 June 2017
MPA Type
Special Area of Conservation
MPA Purpose
areas which have been identified as best representing the range and variety within the European Union of habitats and (non-bird) species listed on Annexes I and II to the Directive


57° 31' 17" North,
7° 38' 25" West

Surface Area

36.39 km2
(14.05 mi.2 )


25.43 km
(15.80 mi.)

Iconic features protected by this site


  • Grey seal (Halichoerus grypus)