A formal 1855 South End square with a sea-themed fountain at its center, mature shade trees, and looping paths, paired historically with Franklin Square across Washington Street. It reads as a quiet residential green rather than a destination park, and dog owners informally use it for off-leash time despite the citywide leash rule.
What to expect
Dogs
Leash required (max 8 ft) per citywide policy; this is not an official Dog Recreation Space, though informal off-leash use is common here, especially mornings and evenings
Hours
City parks are generally open 6:00am-11:30pm daily (citywide rule; no posted gate at this park)
Managed by
Boston Parks and Recreation Department
617-635-4505 · WebsiteWhat's here
On site
Drinking water
Decorative fountain at park center; not confirmed as a potable drinking fountain
Common questions
Is there an entry fee at Blackstone Square?
No, entry is free.
Can I bring my dog to Blackstone Square?
Leash required (max 8 ft) per citywide policy; this is not an official Dog Recreation Space, though informal off-leash use is common here, especially mornings and evenings
What rules should I know at Blackstone Square?
Off-leash dogs are technically prohibited outside designated Dog Recreation Spaces.