ðə wˈɔːɾɚz ʌv fɹˈɛdɚɹˌɪk hˈɛnɹi bˈeɪ fˈɔːɹm mˈoʊst əv ðə sˈʌðɚn bˈaʊndɚɹi, ænd pˈɪt wˈɔːɾɚ ðɪ ˈiːstɚn ænd pˈɑːɹt ʌvðə nˈɔːɹðɚn.
The waters of Frederick Henry Bay form most of the southern boundary, and Pitt Water the eastern and part of the northern.