ðə nˈɔːɹθwˈɛstɚn ænd sˈaʊθwˈɛstɚn pˈoːɹʃənz ʌvðə lˈeɪk ɑːɹ kənˈɛktᵻd baɪ ɐ nˈæɹoʊ tʃˈænəl æt dˈɜːnæfɚst ɐ tˈaʊnlənd ɔnðə wˈɛstɚn lˈɔŋfɚd ʃˈoːɹ ʌvðə lˈeɪk, bˌʌt wˌɪtʃ ɪz ɪn kˈaʊnti kˈævæn.
The north-western and south-western portions of the lake are connected by a narrow channel at Dernaferst (a townland on the western (Longford) shore of the lake, but which is in County Cavan).