Loch of Stenness

Site overview: This site is made up of coastal lagoons, including the largest brackish lagoon in the UK. The soft mud here supports mats of green algae and large numbers of burrowing worms. In the more salty areas of the lagoon, clumps of mussels live.

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


58° 59' 54" North,
3° 15' 8" West

Surface Area

7.93 km2
(3.06 mi.2 )


22.37 km
(13.90 mi.)

Iconic features protected by this site


  • Lagoons (Coastal lagoons)