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

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  • Waltham Children’s Business Fair

    Waltham Common 610 Main St, Waltham, MA, United States

    International Children's Convention 2025—Waltham Children's Business Fair Observe the opportunity for children to launch their very own startup businesses! Kids develop a brand, create a product or service, build a […]

    Free
  • Dogs welcome! Lyman Estate landscape tour

    Lyman Estate 185 Lyman Street, Waltham

    Walk in the paw-prints of the Lyman family's beloved pets on the rolling paths and garden trails of the 37-acre Lyman Estate! Well-behaved, leashed dogs are welcome to join their […]

    $20
  • Knotweed removal party

    Shaw's supermarket 130 River Street, Waltham, MA

    Come help the local landscape breathe by cutting down Japanese knotweed along the Charles River Path during the Waltham Land Trust's first big knotweed cutting event based out of Shaw's […]

    Free
  • Workshop: Needle felt painting

    Gore Place 52 Gore Street

    Gore Place is excited to once again welcome Rachel Benson from The Fiber Web to run a needle felting class at the farm. Join us to create a beautiful felt […]

    $40
  • Summer Solstice

    Piety Corner Club 2 Worcester Lane, Waltham, MA

    Summer Solstice—It's the longest day of the year! Live music, dancing, activities, outdoor games, potluck (finger food). Meet new neighbors, see old friends. Help make this event happen! We need […]

    Free
  • Summer on the Farm 2025

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

    A drop-off program for rising 1st through 8th grade youth all summer long. Through 8-29-2025. View the complete schedule, session availability, and registration information here.

    $325
  • Board game collection launch party

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

    Join us in the lecture hall for our board game collection launch party!! Check out our brand new board game collection and play some great games with your friends and […]

  • Mill Talk: Living the harpsichord life; building and breathing the instrument

    Charles River Museum of Industry & Innovation 154 Moody Street, Waltham, United States

    NOTE: This Mill Talk has been rescheduled from its original May 21 date. Presented by Hendrik Broekman. Throughout his decades of experience in this industry, Hendrik has found himself constantly […]

    Free
  • Bonaparté Magic

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

    Be astounded and amazed by legendary magician Bonaparté! Fun for all ages. There will be two 45-minute performances, at 4:30 and 6:00 p.m. This program is funded by the Mass […]

    Free
  • Puppet show picnic at Gore Place

    Gore Place 52 Gore Street

    Celebrate the start of summer with dinner and a show at Gore Place—a picnic dinner and a puppet show, that is. The Watertown Bookmobile will be there from 5 to […]

    Free
  • Waltham Land Trust—John Brewer’s Tavern fundraiser

    John Brewer's Tavern 39 Main Street, Waltham

    Eat well, do good! Dine in or take out at John Brewer's Tavern and 20% of your bill supports the Waltham Land Trust, our community's primary environmental nonprofit group. This […]

    Free