Kenmare River, often called Kenmare Bay, is a long, narrow sea inlet on the southwest coast of Ireland, enclosed by the Iveragh Peninsula to the north and the Beara Peninsula to the south. This drowned glacial valley stretches approximately 50 kilometres long and 10 kilometres wide, with its head at the town of Kenmare. The bay is fed by several rivers, including the Roughty, Sheen, Slaheny, and Blackwater, and contains numerous small islands such as the Dunkerron Islands, Greenane Islands, and Rossdohan. Its bedrock is Old Red Sandstone, and it is designated as a Special Area of Conservation (SAC). Despite its name, it is a body of salt water, a historical naming convention related to fishing rights.