North-West of Jones Bank

Overview A large site, 398km2, situated well offshore (165km west of Land’s End), right out over the continental shelf into the Atlantic. The seabed here is mainly muddy - which is the perfect home for small burrowing animals such as worms, molluscs, cockles, urchins and sea cucumbers, as well as fish and rays which feed on these. Many types of seabird also spend their winters here, as the relatively stable sea conditions keep a supply of food available in all but the stormiest weather. For example, this site is special for the great northern divers that spend time here between August and the early spring, when they move back to their largely Icelandic breeding grounds.

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° 54' 58" North,
8° 11' 31" West

Surface Area

398.10 km2
(153.71 mi.2 )


79.82 km
(49.59 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)