Lower New York Bay is a section of New York Bay south of the Narrows. The eastern end of the Bay is marked by two spits of land, Sandy Hook, New Jersey, and Rockaway, Queens. The waterway between the spits connects the Bay to the Atlantic Ocean at the New York Bight. Traversing the floor of the Bay southeasterly from the Narrows to the Bight and beyond is Hudson Canyon.
Roughly the northeastern portion of the Bay from the Narrows to Sandy Hook is known as the Lower Bay; roughly the western portion of the Bay is called Raritan Bay; and roughly the southeastern portion of the Bay is known as Sandy Hook Bay.
Wikipedia https://en.wikipedia.org/wiki/Lower_New_York_Bay
Coordinates 40°30'10.463" N -74°5'4.55" E