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

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  • 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 Waltham Land Trust on other days throughout the year. This is the 26th anniversary of this special event to help remove litter and invasive plants […]

    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 that all starts with your family and the Y. Join us for family pickleball in the gym, NFL flag football, fitness class sampler, family swim […]

    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 this historic, 50-acre estate. The festival will take place on April 26, rain or shine. For ticket information, vendor information, or to learn how to […]

    $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 roadside area bordering WFCF and GROW's community garden plots (Beaver Street & Linden Street), as there is a significant amount of litter from the roadway […]

    Free
  • Paul A. Mitchell Foundation, Inc. — Annual memorial basketball game

    Waltham Boys & Girls Club 20 Exchange St, Waltham, MA

    "Your wings already exist. All you have to do is fly." Join us for an exciting game, raffles, prizes, relay race (ages 6-9), knockout (ages 10-12) and page loads of fun! Doors open: 12:30 p.m. Age 17 and under free.  

    $10
  • 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
  • Waltham City Council Meeting

    Waltham City Council meeting

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

    Waltham City Council normally meets on the second and fourth Mondays of each month, except during July and August. If a meeting falls on a Monday holiday, Council instead meets […]

    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 […]

    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 […]

    $15
  • Land Trust fundraiser at Shiva Shakti

    Shiva Shakti 8 Common Street, Waltham, MA

    Join us for a night of restorative and gentle yoga for all levels to benefit the Waltham Land Trust, hosted by Shiva Shakti, located above the WLT office on Common […]

    $25