タイドナビ
検潮所
Eel Point
Great Point
Muskeget Island, North Side
Nantucket Island
検潮所（潮汐流）
Eel Pt., Nantucket I. 2.5 miles NE of
Great Point, 0.5 mile west of
Great Point, 3 miles west of
Muskeget I., channel 1 mile northeast of
Nantucket Harbor entrance channel
