Which Island is in the Town of Southold in Suffolk County, New York in the United States Plum Island or Block Island Sound?
Block Island Sound Block Island Sound is a strait in the open Atlantic Ocean, approximately 10 mi wide, separating Block Island from the coast of mainland Rhode Island in the United States. On the west, it extends to Montauk Point on the eastern tip of Long Island, as well as Plum Island, Gardiners Island, and Fishers Island, all in the state of New York.
Little Neck Bay Little Neck Bay is an embayment in western Long Island, New York, off Long Island Sound. Little Neck Bay forms the western boundary of the Great Neck Peninsula, the eastern boundary of which is Manhasset Bay. The political boundary between Nassau County and the borough of Queens runs through the bay, bordering the neighborhoods of Douglaston/Little Neck.