Crossword clues for River to the Irish Sea. 3 lettersAnswerClueDEERiver to Irish SeaDEERiver into Irish Sea.DEERiver to the Irish Sea.BOYNERiver into the Irish Sea.ERNESea eagle or Irish riverBOYNERiver to the Irish SeaERNESea bird or Irish riverEHENEnglish river flowing into Irish Sea.EHENRiver into the Irish Sea.