The Ocean Parkway ends just past the southern terminus of a causeway that has what New York State Route designation?
Ocean Parkway (Long Island):  It begins at the southern terminus of the Meadowbrook State Parkway and heads east across Jones Beach Island, intersecting the south end of the Wantagh State Parkway before ending just past the southern terminus of the Robert Moses Causeway. Robert Moses Causeway:  It is designated New York State Route 908J (NY 908J), an unsigned reference route.
908J