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Beaches · Massachusetts, Boston

Pleasure Bay Beach (Castle Island)

  • Vibefamily-friendly, calm and shallow
  • Distance4 miles from downtown Boston
  • Rating★ 4.5
  • Best seasonMay-September
  • Difficultyeasy
  • TransportBus 9 or Red Line to Broadway then bus

Pleasure Bay Beach lies on the sheltered inner side of the Castle Island causeway at 2010 William J. Day Boulevard in South Boston, Massachusetts, about four miles from downtown Boston. The beach faces a small, enclosed bay rather than the open harbor, so the water is typically very calm, shallow near the shore and well suited to young children and relaxed swimming.

Pleasure Bay Beach lies on the sheltered inner side of the Castle Island causeway at 2010 William J. Day Boulevard in South Boston, Massachusetts, about four miles from downtown Boston. The beach faces a small, enclosed bay rather than the open harbor, so the water is typically very calm, shallow near the shore and well suited to young children and relaxed swimming. The sand is a tan mix of sand and fine gravel, and the water has the cool grey-green colour of Boston Harbor. The shoreline forms a gentle curve, and the surrounding Pleasure Bay walkway, a loop of roughly two miles, circles the bay and links the beach with Castle Island and historic Fort Independence. The atmosphere is relaxed and local: families, dog walkers, runners and picnickers share the area, and the beach is a favourite for sunset walks. Amenities include restrooms, lifeguards during the summer season and the nearby Sullivan's snack bar, a long-running local stand known for hot dogs, fried seafood and ice cream. Benches and grass areas near the water offer places to picnic. Planes from Logan Airport pass overhead on some approaches, a notable feature of the view across the harbor. Access is simple. Bus 9 and connections from the Red Line at Broadway serve the area, and visitors can walk from the bus stop along the waterfront. Free parking is available in lots near Castle Island, though these fill on summer weekends and during holidays such as Fourth of July. The paved loop is flat and is one of the most popular walking routes in the city, so the setting works for a short beach visit combined with a longer stroll. Visitors can tour Fort Independence when it is open for seasonal programs.

Practical information for Pleasure Bay Beach (Castle Island) · Last updated September 2026
Distance 4 miles from downtown Boston
Getting there Bus 9 or Red Line to Broadway then bus
Difficulty easy
Best season May-September
Address 2010 William J. Day Blvd, South Boston, MA 02127

Amenities

  • Restrooms
  • Walking loop
  • Sullivan's snack bar

Good to know

Best for
families, swimmers, photographers, couples

Location

2010 William J. Day Blvd, South Boston, MA 02127

42.3363, -71.0110 View on map

Highlights

  • Calm, shallow bay water protected by the Castle Island causeway
  • Pleasure Bay loop walk of about two miles
  • Sullivan's snack bar for hot dogs and ice cream
  • Walkable access to historic Fort Independence
  • Harbor views with planes passing over from Logan Airport

Tips for visiting

  • Arrive early on summer weekends and holidays because Castle Island lots fill quickly.
  • Walk the full Pleasure Bay loop for the best views across the harbor.
  • Expect queues at Sullivan's snack bar on hot afternoons and plan food accordingly.
  • Visit around sunset for the best photography light over the bay.
  • Check the seasonal schedule if a Fort Independence tour is planned.

When to visit

May to September, with weekday mornings and evenings the quietest. Summer holidays and hot weekends are the most crowded.

Accessibility

The Pleasure Bay loop and nearby paths are paved and flat, suited to wheelchairs and strollers. Sand access and beach wheelchair availability should be confirmed locally.

Frequently asked questions

Is Pleasure Bay good for children?

Yes. The bay is sheltered and shallow near the shore, so the water is usually calm and suits small children.

How long is the Pleasure Bay walk?

The loop around the bay is about two miles on a flat paved path that also links to Castle Island.

How do I reach Pleasure Bay without a car?

Bus 9 serves the area, or take the Red Line to Broadway and connect by bus along the waterfront.

Is there food at the beach?

Sullivan's snack bar near Castle Island serves hot dogs, fried seafood and ice cream in season.