Cousins Beach, as referenced in popular culture, is a fictional coastal town inspired by locations in Massachusetts, particularly Cape Cod, which is south of Boston. The distance from Boston to Cousins Island, a real place near Maine, is about 121 miles by a direct route and about 118.8 miles by road. However, the Cousins Beach from "The Summer I Turned Pretty" series is generally understood to be located around Cape Cod, Massachusetts, which would be roughly 1 to 2 hours south of Boston by road, depending on the exact location on the Cape and traffic conditions. Therefore, the distance from Boston to the fictional Cousins Beach would be approximately 60 to 100 miles, aligning with the Cape Cod area.