Harbor Defenses of Long Island Sound

Fort H. G. Wright was a United States military installation on Fishers Island in the town of Southold, New York, just two miles off the coast of southeastern Connecticut, but technically in New York. It was part of the Harbor Defenses of Long Island Sound, along with Fort Terry, Fort Michie, and (in World War II) Camp Hero. These forts defended the eastern entrance of Long Island Sound and thus Connecticut's ports and the north shore of Long Island. The fort was named for Union General Horatio G. Wright, a former Chief of Engineers who was born in Clinton, Connecticut.The fort was first developed in the early 20th century and was active in the First and Second World Wars. After the Second World War, it was deactivated as a coast defense fort.

Fishers Island (Pequot: Munnawtawkit) is an island that is part of Southold, New York, United States at the eastern end of Long Island Sound, 2 miles (3 km) off the southeastern coast of Connecticut across Fishers Island Sound. About 9 miles (14 km) long and 1 mile (1.6 km) wide, it is about 11 miles (18 km) from the tip of Long Island at Orient Point, 2 miles (3 km) each from Napatree Point at the southwestern tip of Rhode Island and Groton Long Point in Connecticut, and about 7 miles (11 km) southeast of New London, Connecticut. It is accessible from New London by plane and regular ferry service. The island is part of the town of Southold in Suffolk County. It is a census-designated place (CDP). As of the 2010 census, there were 236 people living year-round on 4.1 square miles (10.6 km2) of land. The population rises to about 2,000 during peak summer weekends, as throngs disembark on the island from Connecticut.

Race Rock Light is a lighthouse on Race Rock Reef, a dangerous set of rocks on Long Island Sound southwest of Fishers Island, New York and the site of many shipwrecks. It is currently owned and maintained by the New London Maritime Society as part of the National Historic Lighthouse Preservation Act program.Race Rock Light was built 1871–78 and designed by Francis Hopkinson Smith (1838–1915). It is an excellent example of 19th-century engineering and design. The massive masonry foundations on the reef took seven years to complete, but the stone structure, the keeper's quarters, and the tower were built in only nine months once the foundation was secure. The lighthouse has a fourth-order Fresnel lens in a tower standing 67 feet (20 m) above the waterline. The United States Coast Guard automated the light in 1978.Race Rock Lighthouse was added to the National Register of Historic Places in 2005.

North Dumpling Light is a lighthouse on North Dumpling Island in Long Island Sound off Fishers Island, New York. It was constructed in 1849, rebuilt in 1871, and deactivated in 1959, with the aid to navigation being moved to an automated metal tower placed nearby. The lighthouse itself and the grounds around it were sold to a private party. Around 1977, a new owner convinced the U. S. Coast Guard to return the light to the lighthouse and remove the skeleton tower.

North Dumpling Island is a two-acre (8,100 m2) island in Fishers Island Sound of Long Island Sound, one mi (1.6 km) off the coast of Connecticut, south of Groton, within the territory of the town of Southold on Long Island in New York State. The island is about 0.3 nmi (560 m) north of South Dumpling Island, and is home to the North Dumpling Light, which dates from 1859. The island is privately owned by Dean Kamen, inventor of the Segway.

Groton Long Point Yacht Club (GLPYC) was charted in 1934 in the beach community of Groton Long Point, Connecticut and remains active today. Functioning during the summer as something akin to a summer camp, the Yacht Club currently runs classes in sailing (420's, Optis, and Seashells), swimming, tennis, and sports.

Groton Long Point (GLP) is located within the town of Groton, on Fishers Island Sound, in New London County, Connecticut, United States. The year-round population was 518 at the 2010 census. The area is administered by the Groton Long Point Association (GLPA), a private association that was established by Special Act of the Connecticut Legislature in 1921. The act is the charter of the GLPA and enables the Association to tax and issue bonds to provide services independent of the town of Groton; typically, such municipal corporations provided services that the larger township could not or would not provide. Pursuant to the act, the GLPA has the same governmental powers as a borough. Today, such a special taxing district can be formed by Connecticut residents on their own without special acts of the Legislature. The area is treated by the U.S. Census Bureau as a borough, although it is not formally incorporated as such.

Mumford Cove is a private association in Southeastern Connecticut located adjacent to Groton Long Point, bordered by Noank Connecticut Haley's Farm nature preserve, Palmer's Cove, and Fisher's Island Sound. It is a part of the town of Groton, Connecticut. The neighborhood was first developed in the late 1960s, and former Connecticut Governor John Dempsey briefly lived there. Mumford Cove experienced ecological crises in the 1970s, when raw sewage was routinely pumped into the waters of the cove and salt marshes of the area. Since this practice was halted, the EPA has studied and assessed the health and safety of the waters off of Mumford Cove, which have now nearly returned to their natural levels.

Bluff Point State Park is a public recreation area and nature preserve on an undeveloped peninsula located between the Poquonnock River and Mumford Cove on Long Island Sound in the town of Groton, Connecticut. The state park's 806 acres (326 ha) encompass a barrier beach, steep cliffs, forested sections, and tidal wetlands; 778 acres (315 ha) are designated as a coastal reserve. Recreational opportunities include hiking, mountain biking, boating, saltwater fishing, and shell fishing. The park is managed by the Connecticut Department of Energy and Environmental Protection.

The United States Coast Guard Research & Development Center (CG RDC) located in New London, Connecticut is the Coast Guard's center for operational analysis and mission execution solutions. The Research & Development Center is dedicated to maximizing its contribution by maintaining a balanced portfolio of projects that support the Coast Guard's short, medium, and long range requirements across all major missions. It is the Coast Guard's sole facility performing research, development, test and evaluation (RDT&E) in support of the Coast Guard's major mission areas of; Environmental Protection, Maritime Law Enforcement, Protection of Life and Property at Sea and National Defense Preparedness. The R& D Center's technology research includes: detection, interdiction and prosecution of drug smugglers; cleaning up oil spills; maritime navigation safety; alertness and performance of commercial and CG crews; eliminating invasive species for ship ballast water. It is located in the Fort Trumbull section of New London at 1 Chelsea St.

New London Ledge Lighthouse is a lighthouse on the Thames River in Connecticut at the mouth of New London Harbor. It was built in 1909 in the Second Empire style and was automated in 1987. In 1990, it was added to the National Register of Historic Places. The lighthouse is owned and maintained by the New London Maritime Society as part of the National Historic Lighthouse Preservation Act program.

The Branford House is located in Groton, Connecticut, on the campus of UConn Avery Point, which rents it out for events. Branford House was built in 1902 for Morton Freeman Plant, a local financier and philanthropist, as his summer home; he named it after his hometown of Branford, Connecticut. The house was added to the National Register of Historic Places on January 23, 1984.