Bathymetric cairt o the Celtic Sea, pairt o the Atlantic Ocean, an its surroondins

The Celtic Sea (Erse: An Mhuir Cheilteach; Welsh: Y Môr Celtaidd; Cornish: An Mor Keltek; Breton: Ar Mor Keltiek; French: La mer Celtique) is the aurie o the Atlantic Ocean aff the sooth coast o Ireland boondit tae the east bi Saint George's Channel;[1] ither leemits include the Bristol Channel, the Inglis Channel, an the Bay o Biscay, as well as adjacent portions o Wales, Cornwall, Devon, an Brittany. The soothren an wastren boondaries are deleemitit bi the continental shelf, which drops away sharply.