Arsenal Park is a fully renovated 13.7-acre park on Arsenal Street that reopened July 15, 2025, with a skate park, splash pad, playground, amphitheater, community garden, and three covered pavilions, next to the Arsenal Yards shopping and residential development.
What to expect
Trails
A walk/bike path runs through the park.
Dogs
Leashed dogs are allowed on the marked or paved walking path only. Off-leash areas in town are limited to the fenced dog parks at Howe Park and Filippello Park.
Hours
Open 8:00am to dusk; if artificially lit, the park closes at 10:00pm.
Managed by
Watertown Recreation Department
617-972-6494 · WebsiteWhat's here
On site
Playground
Playground on site as part of the 2025 renovation; specific age range not published.
Restroom
On-site restrooms
Picnic area
Three covered pavilions, 12 picnic tables, 16 charcoal grills; a permit is required for grill use. · Grill use requires a Recreation Department permit.
Not here
No concessions
Not confirmed present.
No drinking water
Not specifically listed.
Common questions
Is there a splash pad, and when does it run?
Yes, Arsenal Park's spray pad runs 8:30am to 8:30pm from Memorial Day through Labor Day, plus warm weekends above 70 degrees.
Leashed dogs are allowed on the marked path; Arsenal is one of the six Watertown parks with that leash exception.
Is there an entry fee at Arsenal Park?
No, entry is free.
Can I bring my dog to Arsenal Park?
Leashed dogs are allowed on the marked or paved walking path only. Off-leash areas in town are limited to the fenced dog parks at Howe Park and Filippello Park.
What rules should I know at Arsenal Park?
A permit is required to use the charcoal grills at Arsenal (and Filippello) Park.