ðə lˈeɪk kəntˈeɪnz wˈʌn lˈɑːɹdʒ ˈaɪlənd ɪnðə sˈaʊθwˈɛstɚn pˈɑːɹt, ˈɪntʃmoːɹ ɪnˈaɪz mˈɔːɹ ɪn ˈaɪɹɪʃ, mˈiːnɪŋ "bˈɪɡ ˈaɪlənd", wˌɪtʃ wʌzðə sˈaɪt əvə mˈɑːnɐstɚɹi fˈaʊndᵻd ɪnðə sˈɪksθ sˈɛntʃɚɹi baɪ sˈeɪnt kˈɑːlmsɪl.
The lake contains one large island in the south-western part, Inchmore (Inis Mór in Irish, meaning "Big island"), which was the site of a monastery founded in the sixth century by Saint Colmcille.