service is also available from Hingham Shipyard and Hull to Georges Island via Grape, Bumpkin, and Lovells Islands. (These services are separate from MBTA Boat harbor ferries.) Thompson Island is only open to the public on Sundays during the summer. It is served by a ferry leaving from both Spectacle Island and the EDIC dock on Terminal Street in South Boston, operated by the Thompson Island Outward Bound Education Center. Private boats can dock (with various restrictions) at Spectacle, Grape, Bumpkin, Lovells, and Peddocks Islands. The public dock on Georges Island was recently condemned by engineers, although access is still available by making anchor off shore and using a dinghy to row ashore. Deer Island, Nut Island, Worlds End, and Webb Memorial are accessible by road from the mainland. Moon Island and Long Island are not open to the public; though Moon Island is accessible by road from Quincy, access is controlled by a police guard station at the beginning of the causeway on the Squantum peninsula. The causeway from Moon Island to Long Island was demolished in 2015 and it is no longer accessible by road. See also National Register of Historic Places listings in Plymouth County, Massachusetts National Register of Historic Places listings in Suffolk County, Massachusetts References Bibliography Best, Neil A., "Preliminary Design of a Recirculating Aquaculture System in Boston Harbor", Masters Thesis, Ocean Engineering, MIT, February 1997. Technical Advisor, Clifford A. Goudey. The Boston Globe, "Harboring recreation", Guest Editorial, June 3, 2006. Kales, Emily, Kales, David, "All About the Boston Harbor Islands", Hewitts Cove Publishing, 1983. Marcus, John, "Scientists Test Once-Polluted Harbor’s Crop Potential", Los Angeles Times, Sunday, January 11, 1998 Mikal, Alan, "Exploring Boston Harbor", Christopher Publishing House, North Quincy, Massachusetts, 1973. Northeastern Naturalist, Volume 12, Issue sp3, July 2005. Articles on the Boston Harbor Islands. Richburg, Julie A., Patterson, William A., III, "Historical Description of the Vegetation of the Boston Harbor Islands, 1600-2000", Northeastern Naturalist, v.12, Special Issue 3, 13-30, 2005. Sammarco, Anthony Mitchell, "Boston's Harbor Islands", Images of America series, 1998. Sherman, Annie, "The Other Islands: The Harbor Islands make for an easy day trip for sunbathers, history buffs—and especially the traffic-weary", Boston magazine, May 2007 issue. Snow, Edward Rowe "The Islands of Boston Harbor", 1935. "Sailing Down Boston Bay", Yankee Publishing Company, 1941. "Some Events of Boston and Its Neighbors", printed for the State Street Trust Company, Boston, Massachusetts, 1917. "The Islands