"The Atlantic Ocean feeds Killary Harbour twice daily with 1000’s of gallons of fresh seawater, bringing the natural food source of phytoplankton to the growing mussels. Killary is the catchment bay for the surrounding valleys of Delphi, Maam and Eriff which give a continuous flow of freshwater into the bay. The resulting unique mix of fresh and salt water is said to give Killary mussels their distinctive sweet flavour.
Each year Killary Harbour produces up to 2000 tonnes of rope mussels, providing local employment that gives a sustainable use of the natural marine resource. The Connemara Mussel Festival celebrates this high quality, local, natural food that is uniquely the Killary mussel" (Connemara Mussel Festival).