Westbrook, Suffolk County, New York

Bayard Cutting Arboretum State Park is a 691-acre (2.80 km2) state park located in the hamlet of Great River, New York, on Long Island. The park includes an arboretum designed by Frederick Law Olmsted for William Bayard Cutting in 1886, as well as a mansion designed by Charles C. Haight. Today Bayard Cutting Arboretum State Park is one of the last remaining estates on the South Shore of Long Island. It has been listed on the National Register of Historic Places since 1973 as a historic district. Robert Fulton Cutting, known as the “first citizen of New York” and his wife Helen Suydam Cutting, niece to Caroline Astor, would frequent the manor house and estate as both William and Robert were brothers. Together Robert and William brought the sugar beet industry to the United States.

Great River is a railroad station on the Montauk Branch of the Long Island Rail Road, at Connetquot Avenue and Hawthorne Avenue in East Islip, New York. The station opened in 1897.

Great River is a suburban hamlet and CDP in the Town of Islip in Suffolk County, New York, United States. It is situated approximately 50 miles (80 km) (55 mi driving) east of New York City on the South Shore of Long Island, adjoining the Great South Bay, protected from the Atlantic Ocean by Fire Island. Great River's name derives from "Connetquot," an Algonquian word for "Great River." Prior to the 1900s Great River was primarily home to wealthy families on mansion estates. As of the 2010 census, the population of Great River was 1,489.Great River's buildings include a New York City-style steak house in a turn of the century (20th) Public house, a delicatessen, a rural delivery post office and the Great River Fire Department.

Idle Hour is a former Vanderbilt estate that is located in Oakdale on Long Island in Suffolk County, New York. It was completed in 1901 for William Kissam Vanderbilt. Once part of Dowling College, the mansion is one of the largest houses in the United States.

Dowling College was a private college on Long Island, New York. It was established in 1968 and had its main campus located in Oakdale, New York on the site of William K. Vanderbilt's mansion Idle Hour. Dowling also included a campus in Shirley, which contained the college's aviation program and athletic complexes, and small campuses in Melville and Manhattan. Dowling was composed of four schools: the School of Arts & Sciences, the School of Education, the Townsend School of Business, and the School of Aviation. Largely enrolling local Long Island students, the college offered a variety of bachelor's degree programs in the arts, sciences, and business, master's degree programs in education and business, and a doctorate in education.After years of financial difficulties, frequently changing leadership, declining enrollment, and a failed search to find an academic partner, Dowling's accreditation was revoked by the Middle States Commission on Higher Education and the college ceased operations on August 31, 2016.

The Oakdale Merge is a convergence of Sunrise Highway (New York State Route 27, NY 27) and Montauk Highway (NY 27A and County Route 85, CR 85) between the hamlets of Great River and Oakdale, in Suffolk County, New York, in front of Connetquot River State Park.

South Side Sportsmen's Club was a recreational club that catered to the wealthy businessmen of Long Island during the gold coast era from the 1870s through the 1960s. Its main clubhouse and other facilities were added to the National Register of Historic Places as the Southside Sportsmens Club District in 1973, and are today contained within the Connetquot River State Park Preserve.

Oakdale is a hamlet (and census-designated place) in Suffolk County, New York, United States. The population was 7,974 at the 2010 census. Oakdale is in the Town of Islip. It has been home to Gilded Age mansions, the South Side Sportsmen's Club, and the main campus of Dowling College. It is now home to Connetquot River State Park Preserve.

East Islip is a hamlet and CDP in the Town of Islip, Suffolk County, New York, United States. At the time of the 2010 census, the CDP had a population of 14,475.

Islip Terrace (formerly known as Germantown) is a hamlet and census-designated place (CDP) in the Town of Islip in Suffolk County, on the South Shore of Long Island, in New York, United States. The population was 5,389 at the 2010 census.

North Great River is a hamlet and census-designated place (CDP) in the Town of Islip, in Suffolk County, on Long Island, in New York, United States. The CDP population was 4,001 at the 2010 census. The hamlet is served by the Islip Terrace Post Office (11752).

Oakdale is a railroad station on the Montauk Branch of the Long Island Rail Road, on the corner of Oakdale-Bohemia Road and Montauk Boulevard in view of Montauk Highway across Norman DeMott Park, in Oakdale, New York.