Greater Haig Fras

Overview This site gets its name from the Haig Fras rock which is a geologically valuable, fully submersed outcrop of bedrock, the only substantial area of rocky reef in the Celtic Sea. This area measures 2,041km2 and supports a huge variety of marine life. This includes fantastic jewel anemones, Devonshire cup corals and encrusting sponges. Communities of sponges, bryozoans and anemones cover the rocks, while sand and muddy zones provide a home to molluscs, worms and brittlestar beds.

Designation Status
Last Updated
6 June 2017
MPA Type
Marine Conservation Zone
MPA Purpose
to protect nationally important marine wildlife, habitats, geology and geomorphology


50° 18' 9" North,
7° 47' 33" West

Surface Area

2,040.84 km2
(787.97 mi.2 )


189.64 km
(117.84 mi.)

Iconic features protected by this site


  • Subtidal mud (Broad-scale habitat)
  • Subtidal sand (Broad-scale habitat)
  • Sea-pen and burrowing megafauna communities (FOCI habitat)
  • Subtidal coarse sediment (Broad-scale habitat)
  • Subtidal mixed sediments (Broad-scale habitat)


  • Haig Fras rock complex (Geological or geomorphological feature of interest)