Castle Island and Pleasure Bay

A fort, harbor loop, beaches, fishing, picnicking, play, and component-specific accessible facilities make this South Boston reservation a flexible waterfront outing.

Swimming, beach access equipment, restrooms, events, and closures vary seasonally. Dogs are prohibited on beaches from May 1 through September 15.

Best for
Fort loop + beaches
Landmark
Fort Independence
Outside
Shoreline trail + beaches
Access
Specific accessible facilities
Location

2010 William J. Day Boulevard, Boston, MA 02127
South Boston · Directions

Castle Island and the linked Pleasure Bay, M Street Beach, and Carson Beach reservation combine Fort Independence, shoreline walking, beaches, swimming, fishing, picnicking, a playground, boardwalk, restrooms, and scenic overlooks.

DCR identifies an accessible trail around Pleasure Bay, accessible restrooms at Castle Island and Carson Beach, accessible picnicking at Carson, and seasonal beach mats and wheelchairs at Carson and Pleasure Bay. Those features, swimming, events, and temporary closures require current checks.

Official park details

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