Holland is a city in the western region of the Lower Peninsula of the U.S. state of Michigan. It is situated near the eastern shore of Lake Michigan on Lake Macatawa, which is fed by the Macatawa River (formerly known locally as the Black River). The city spans the Ottawa/Allegan county line, with 9.08 square miles (23.52 km2) in Ottawa and the remaining 8.13 square miles (21.06 km2) in Allegan. As of the 2010 census, the population was 33,051, with an urbanized area population of 113,164, as of 2015. Holland is the largest city in both Ottawa and Allegan counties. The Ottawa County portion is part of the Grand Rapids-Kentwood Metropolitan Statistical Area, while the Allegan County is part of the Holland Micropolitan Statistical Area, which is coextensive with Allegan County. As of 2013, both areas are part of the Grand Rapids–Kentwood–Muskegon Combined Statistical Area. Holland was founded by Dutch Americans, and is in an area that has a large percentage of citizens of Dutch American heritage. It is home to Hope College and Western Theological Seminary, institutions of the Reformed Church in America. In February 1996 the Holland City Council approved a sister city relationship between Santiago de Querétaro, Querétaro, Mexico and the City of Holland.

South Haven is a city in the U.S. state of Michigan. Most of the city is in Van Buren County, although a small portion extends into Allegan County. The population was 4,403 at the 2010 census. Because of its position on Lake Michigan, at the mouth of the Black River, South Haven has always been a port city. During settlement, major ship lines stopped there, both passenger and freight. In the early 1900s South Haven became a resort town, sometimes referred to as "The Catskills of the Midwest." South Haven is a major regional tourist draw because of its recreational harbor and beaches. It is the western terminus of the Kal-Haven Trail, popular with bicyclists and snowmobilers. Nearby are Van Buren State Park and the Van Buren Trail State Park. Noted botanist Liberty Hyde Bailey was born in South Haven. His childhood home was presented to the city in the 1930s, and is now a museum.

Allegan is a city in the U.S. state of Michigan. Its population was 4,998 at the 2010 census. It is the county seat of Allegan County. It lies within Allegan Township but is administratively autonomous. Allegan was named in a neologism by Michigan historian Henry Rowe Schoolcraft in 1837 to sound like a Native American word. Land was purchased from government to form the downtown business district; village organization came in 1838 with city incorporation authorized in 1907.Allegan is in the south-central portion of the county. To the west and northwest is the nearly 50,000 acre forest Allegan State Game Area for which the city is considered a gateway. Lake Allegan in Valley Township is also a tourist destination for boating, fishing, and swimming. Allegan's dense forests, lakes, and river geography served as a source of water power, trade routes for steamboats, and timber production. Once cleared, it became a center for business, industry and expansive farmland.

Grand Haven is a city in the U.S. state of Michigan and the county seat of Ottawa County. Grand Haven is located on the eastern shore of Lake Michigan at the mouth of the Grand River, for which it is named. As of the 2010 census, Grand Haven had a population of 10,412. It is part of the Grand Rapids Metropolitan Area, which had a population of 1,027,703 in 2014. The city is home to the Grand Haven Memorial Airpark (3GM) and is located just north of Grand Haven Charter Township.