Rocky, sharp bedrock houses the outermost lighthouse in the Boston Harbor.
Seated atop this rocky ledge is the 113-foot tall Graves Light. The lighthouse resides at the entrance to Boston Harbor and functions as an automated navigational aid. It is the tallest of the three lighthouses in Boston Harbor, and it is listed in the National Register of Historic Places.
One of the Brewster islands, the Graves currently operates as an active Coast Guard navigational aid facility and is not open to private boaters. The lighthouse and its outbuildings are privately owned and are currently undergoing restoration.
Graves Light is privately owned.