Hangman Island, also known as Hayman's Island, is an island in the Quincy Bay area of the Boston Harbor Islands National Recreation Area. The island is a barren outcrop of bedrock, with a permanent size of half an acre rising to only three feet above sea level, plus an intertidal zone of a further 5 acres . Access is by private boat only.
Approach to this island should be made with care and with the use of a nautical chart since there are many rocks and shoals in the immediate area. There is a small pebbly beach on the southern side. Special care should be taken when passing close aboard this island. Shoals extend approximately 250 yards to the northeast from this island and approximately 480 yards toward the south and southwest . There are many rocks and ledges in these areas that are hidden at high water. A green and white daybeacon on a pile marks the southwestern point of these shoals.
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