South-West Deeps (West)

Site overview: This is an offshore site situated to the south west of England, approximately 230 km from Land’s End in Cornwall. The sandy sea bed here makes the perfect home for small burrowing worms and bivalve molluscs, urchins, starfish and some crustaceans.

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


49° 8' 41" North,
9° 2' 55" West

Surface Area

1,823.88 km2
(704.20 mi.2 )


216.93 km
(134.79 mi.)

Iconic features protected by this site


  • Subtidal mud (Broad-scale habitat)
  • Subtidal sand (Broad-scale habitat)
  • Subtidal coarse sediment (Broad-scale habitat)
  • Subtidal mixed sediments (Broad-scale habitat)


  • Fan mussel (Atrina fragilis) (FOCI species)


  • Celtic Sea Relict Sandbanks (Geological or geomorphological feature of interest)