Dates and times are subject to change by organizers. Please visit the organizers’ website for the latest information.

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  • Waltham Public Schools All-District art show

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

    Reception April 10, 6 p.m. Works on view through May 2. Featured locations in the Waltham Public Library: Ground floor: Middle Schools First floor: Elementary Schools Second Floor: High School

  • Waltham Lions Club carnival

    300 Fifth Avenue 300 Fifth Avenue, Waltham, MA

    The Waltham Lions Club carnival returns for school vacation week! Join us for rides, games, food and family fun to benefit the Waltham Lions! Ride unlimited rides during our discount […]

    $3
  • 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 […]

    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 […]

    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