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Sunday, May 31, 2026, 11:30 AM – 12:30 PM
- Russell Field
- 385 Rindge Ave
- Cambridge, MA, 02140
- United States
Join safe streets advocates and organizations in communities north of Boston for a coalition-building bike ride from Cambridge to Lynn!! 🚲🚲🚲
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Saturday, May 30, 2026, 11:00 AM – 2:00 PM
- Little Mystic Channel
- 31 Old Landing Way
- Boston, MA, 02129
- United States
We’re throwing a party on the Charlestown waterfront!
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Thursday, May 28, 2026, 3:00 PM – 6:00 PM
- Mystic River Watershed Association
- 23 Maple Street
- Arlington, MA, 02476
Join us at the MyRWA office for a Trees Open House! Stop by anytime for family fun, refreshments, and to chat with Project Managers Karina & Marja.
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Thursday, May 28, 2026, 3:00 PM – 5:00 PM
- Chelsea City Hall
- 500 Broadway
- Chelsea, MA, 02150
- United States
Join MyRWA and the City of Chelsea to help keep Chelsea clean! We will be hosting 4 different trash clean ups to help beautify the city this spring.
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Saturday, May 23, 2026, 8:00 AM – 6:00 PM
Come volunteer with Trees Medford to bring Medford’s first Miyawaki mini-forest to life at Tufts Park!
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Thursday, May 21, 2026, 5:30 PM – 7:30 PM
- Hurld Park
- Sheridan Street
- Woburn, MA, 01801
- United States
Join us to help remove trash and invasive garlic mustard from the Hurld Park wetland area!
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Wednesday, May 20, 2026, 6:30 PM – 8:30 PM
- Stoneham Town Hall
- 35 Central St
- Stoneham, MA 02180
Join us at the Friends of the Fells Annual Gathering at Stoneham Town Hall!
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Sunday, May 17, 2026, 9:00 AM – 2:00 PM
- Blessing of the Bay Boathouse
- 32 Shore Drive
- Somerville, MA, 02145
- United States
Join us on Sunday, May 17th for the 30th Annual MYSTIC RIVER HERRING RUN AND PADDLE!
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Saturday, May 16, 2026, 9:00 AM – 11:00 AM
- Spy Pond Park
- 40 Pond Lane
- Arlington, MA, 02474
- United States
Check out this volunteer opportunity with Friends of Spy Pond Park in Arlington, MA!
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Saturday, May 9, 2026, 11:00 AM – 3:00 PM
- 7-Acre Park
- Everett, MA 02149
Come out to the Northern Strand Community Trail for Everett’s Transportation Fair.
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Friday, May 8, 2026, 3:00 PM – 6:00 PM
- Lincoln Park
- 290 Washington St.
- Somerville, MA, 02143
- United States
Celebrate Arbor Day and the end of SustainaVille Week with this picnic and tree planting party at Lincoln Park.
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Thursday, May 7, 2026, 6:00 PM – 7:00 PM
A virtual community meeting to learn about construction plans at Blessing of the Bay Park.
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Thursday, May 7, 2026, 6:30 AM – 9:30 AM
- City Hall Plaze
- Boston, MA
Join Bike to the Sea on an annual Bike to Work Day!
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Wednesday, May 6, 2026, 10:00 AM – 12:00 PM
- Museum of Science, Boston
- 1 Science Pk
- Boston, MA 02114
- United States
Hosted by the Charles River Watershed Association. Stop by the Museum of Science for the unveiling of the Annual Three Rivers Report Card Grades.
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Monday, May 4, 2026, 9:00 AM – 12:00 PM
- 20 Vernon Street
- Somerville, MA, 02145
- United States
Help grow Somerville’s urban tree canopy and volunteer to plant bare-root trees with us!
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Sunday, May 3, 2026, 9:30 AM – 10:30 AM
- Stop and Shop
- 105 Alewife Brook Parkway
- Somerville, MA, 02144
- United States
Join Patagonia’s Wild Turkey’s Run Club for a group run past Spy Pond and along Alewife Brook for our 30k for 30 years challenge!
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Saturday, May 2, 2026, 2:00 PM – 4:30 PM
- Mystic Valley YMCA
- 99 Dartmouth Street
- Malden, MA, 02148
- United States
Find out who needs your help in Malden!
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Saturday, May 2, 2026, 10:00 AM – 12:00 PM
- 1399 Bennington Street
- Boston, MA, 02128
- United States
Join us to help remove invasive plants from Belle Isle Marsh, Boston's largest remaining salt marsh in honor of DCR Park Serve Day!
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Saturday, May 2, 2026, 10:00 AM – 12:00 PM
- Mystic River Watershed Association
- 23 Maple Street
- Arlington, MA, 02476
Join MIT and Harvard communities for a day of secular service with the American Empathy Project.
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Saturday, May 2, 2026, 9:00 AM – 1:00 PM
- Horn Pond
- 85-93 Lake Avenue
- Woburn, MA, 01801
- United States
Join the City of Woburn’s Conservation Commission for Horn Pond Day! Volunteers welcome and stop by the MyRWA table to learn about the new Horn Pond fish passage.
