Columbia Point, in the Dorchester neighborhood of Boston, Massachusetts, sits on a peninsula jutting out from the mainland of eastern Dorchester into the bay. Old Harbor Park is on the north side, adjacent to Old Harbor, part of Dorchester Bay. The peninsula is primarily occupied by Harbor Point, the University of Massachusetts Boston, the John F. Kennedy Presidential Library and Museum, the Edward M. Kennedy Institute for the United States Senate, and a complex at the former Bayside Expo Center, Boston College High School, and the Massachusetts Archives. The Boston Harborwalk follows the entire coastline.

Dorchester is a Bostonian neighborhood comprising more than 6 square miles (16 km2) in the City of Boston, Massachusetts, United States. Originally, Dorchester was a separate town, founded by Puritans who emigrated in 1630 from Dorchester, Dorset, England, to the Massachusetts Bay Colony. This dissolved municipality, Boston's largest neighborhood by far, is often divided by city planners in order to create two planning areas roughly equivalent in size and population to other Boston neighborhoods.