- Beach
- Community and Government
- Historical Place
- Landmark and Historical Place
- National Park
- Outdoors
- Park
- Public Places and Attractions
William Day Boulevard, South Boston, MA 02127
Boston, MA 02127
(617) 268-5744
Castle Island is located on Day Boulevard in South Boston on the shore of Boston Harbor. It has been the site of a fortification since 1634. Castle Island was connected to the mainland by a narrow strip of land in 1928 and is thus no longer an island. It is currently a 22acre recreation site and the location of Fort Independence.