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  • Mission MetroWest road race

    Prospect Hill Park 314 Totten Pond Road, Waltham, MA

    All proceeds go to the Community Day Center of Waltham, a homelessness charity on the corner of Felton Street and Main Street. This is a 5k or 1 mile race, […]

    $20

  • Annual citywide clean-up

    Waltham Public Works 155 Lexington Street, Waltham, MA

    Join us as we clean the city of trash and litter! This is a great opportunity for residents, students, and businesses to get involved in the community and help maintain a clean city we can all be proud of. We are seeking volunteers to make this event successful. Anyone is welcome to participate including students, […]

    Free

  • 26th annual Charles River Earth Day cleanup

    Shaw's supermarket 130 River Street, Waltham, MA

    UPDATE: The cleanup is at capacity in Waltham (and actually along the entire length of the river), but folks can help with the Citywide Cleanup that day, and with the […]

    Free

  • Healthy Kids Day

    Waltham YMCA 725 Lexington St, Waltham, MA

    Healthy Kids Day is a celebration dedicated to teaching kids about the importance of healthy eating, nutrition and physical activity, mental and emotional well-being, and developing healthy habits — and […]

    Free

  • Gore Place Sheepshearing Festival

    Gore Place 52 Gore Street

    Since 1987, this annual event has entertained guests with music, 100+ craft and fiber artists, demonstrations of traditional shearing and herding dogs, and historic re-enactors on the beautiful grounds of […]

    $20

  • Waltham Fields Community Farm and GROW clean-up

    Waltham Fields Community Farm 240 Beaver St, Waltham, MA, United States

    Waltham Fields Community Farm (WFCF) and GROW (Green Rows of Waltham Community Gardens) are teaming up to support the City of Waltham's annual citywide clean-up initiative. We're focusing on the […]

    Free

  • Bike Together Waltham — April group ride

    Waltham City Hall 610 Main St., Waltham, MA, United States

    Update: "Despite the forecast, we are still planning on riding Saturday, April 26, at 2 p.m., meeting behind City Hall. Riding in the rain can be enjoyable, if you dress for the weather! Family Bike Ride has canceled their Sheepshearing Festival ride, so we will change our route to be mostly along the river path. If there […]

    Free

  • Solve climate with 350 Mass!

    Waltham Public Library 735 Main St, Waltham, MA, United States

    Join the 350 Mass Waltham node and help us take climate action in our city to the next level!

    Free

  • Watch City Watches: “Every Little Thing”

    Waltham Public Library 735 Main St, Waltham, MA, United States

    Join us for a matinee! In honor of Earth Month we'll be watching the Sundance hit "Every Little Thing," a new documentary about author and wildlife rehabilitator Terry Masear and her ambitious goal: to save every hummingbird in Los Angeles. "A shimmering, densely layered film about love and resilience." -The Guardian. In the lecture hall.

    Free

  • Inclusion Fusion Concert 2025

    HARRY'S PUB, Bentley U. Student Center, 2nd Fl. 175 Forest Street, Waltham

    A concert with a good cause! All welcome! Join us for a fun evening featuring the band The Capabilities from Berkshire Hills Music Academy, a college-like program for young adults with intellectual and developmental disabilities. The event is hosted by Waltham's Opportunities for Inclusion (formerly GWArc) with support from many wonderful Waltham establishments. Proceeds from the evening go […]

    $15