wɪð ɐ tˈoʊɾəl sˈɜːfɪs ˈɛɹiə ʌvðə ɹˈɛzɚvwˌɑːɹ ɪz slˈaɪtli mˈoːɹ ɛkstˈɛnsɪv ðɐn wˈeɪlzᵻz lˈɑːɹdʒɪst nˈætʃɚɹəl lˈeɪk, bˈɑːlə lˈeɪk æt .
With a total surface area of  the reservoir is slightly more extensive than Wales's largest natural lake, Bala Lake at .