Y Fenai a Bae Conwy/ Menai Strait and Conwy Bay

Site overview: This area is close to Bangor in north-west Wales and is made up of large sand- and mud-flats. Freshwater streams flow across the flats, mixing with the salty sea water and creating a unique environment. Wintering waterbirds like the Oystercatcher come here to nest, it acts as a sort of spillover area when the nearby Dee Estuary is full!

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


53° 18' 36" North,
4° 1' 15" West

Surface Area

265.13 km2
(102.37 mi.2 )


195.66 km
(121.58 mi.)

Iconic features protected by this site


  • Intertidal mudflats and sandflats (Mudflats and sandflats not covered by seawater at low tide)
  • Reefs
  • Subtidal sandbanks (Sandbanks which are slightly covered by sea water all the time)
  • Shallow inlets and bays (Large shallow inlets and bays)
  • Sea caves (Submerged or partially submerged sea caves)