Green Fest
Join us for a fun, hands-on Green Fest for all ages — celebrating sustainability and the power of small actions. Eco-fun for everyone! Make your own kombucha with The Zero-Waste Chef and learn how to keep microplastics out of your diet.
Throughout the day, catch 20-minute programs led by local sustainability experts — fun and full of great actionable ideas you can use! Plus, interactive booths, inspiring experts with actionable tips, awesome raffle prizes – and so much more!
Kids Activities

Get creative with eco-friendly arts and crafts projects designed for kids. Learn to make fun things while being kind to the planet.

Join Samsø Labs for hands-on, maker-style arts and crafts focused on climate themes. Explore creativity and environmental awareness.

Enjoy a special storytime featuring "Neil the Banana Peel" presented by Zero Waste Marin. Learn about reducing waste in a fun and engaging way.

Learn about the amazing work of The Marine Mammal Center and the fascinating lives of marine mammals. Find out how you can help protect them.

Discover how to transform plastic waste into new and useful items with Peninsula Precious Plastics. A hands-on introduction to the power of upcycling.

Anne-Marie Bonneau, Zero Waste Chef
Hands-on kombucha-making workshop with The Zero-Waste Chef! Learn how to brew your own probiotic-packed, naturally fermented drink – and get expert tips to keep microplastics out of your diet.
Register & AttendUpcoming Events
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Sustainability Booths: Learn, Play, Act
Tune up your ride on the spot with the Library’s new DIY Bike Repair Stand — equipped with tools to keep you rolling.
ExtraFood is fighting hunger, wasted food, and climate change in the Bay Area. Their food recovery program rescues excess fresh food from businesses, schools, and gardens and immediately delivers it to people facing food insecurity.
Stop by the Get Ready 94920 table to see a sample emergency go kit and pick up helpful handouts on how to prepare for earthquakes, fires, power shutoffs, and more. Learn how to protect yourself and your family before disaster strikes.
Kids Climate Corner, designed for ages 6–12, offers a maker’s arts and crafts space where kids can build future cars and structures using recyclable and reused materials.
Touch and engage with marine mammal specimens, like a harbor seal’s skull and pelt. Join a ‘rescue demonstration’ to experience what it’s like to be a rescue volunteer with The Marine Mammal Center – and more.
Mill Valley Refuse Service provides reliable waste collection and recycling for Southern Marin, including Mill Valley, Tiburon, Corte Madera, and beyond
Peninsula Precious Plastics, in San Carlos California, supports ART and STEM projects focused on sustainability by up-cycling plastic waste.
The Redwood Botany Club, based on information from Redwood High School and other sources, is a club dedicated to promoting plant life, education, and conservation, particularly within the Redwood community and surrounding areas.
Resilient Neighborhoods empowers people to reduce their household carbon footprint and build connected, disaster-resilient communities. Stop by to learn how small actions at home can lead to big climate solutions.
We invite visitors to wander our half-mile path through oak woodlands and explore a stretch of unspoiled shoreline. Our Sanctuary encompasses 900 acres of subtidal Richardson Bay and hosts a unique eelgrass ecosystem that provides habitat and food for dozens of species of waterfowl.
Got a tote bag, mug, or puzzle that’s no longer your vibe? Bring it and swap it for a new-to-you treasure. Mix and match – any item for any item!
Third Act focuses on organizing people over 60 to envision, develop, and pursue strategies to protect our democracy and end the climate crisis.
Learn about the landscaping projects on the Tiburon Peninsula
Check out TPD’s two EV patrol vehicles
Their mission is to help Marin County residents and businesses meet the county’s zero waste goal by 2025 through waste reduction, recycling, and safe hazardous waste disposal.

MCE Clean Energy
MCE Clean Energy is a not-for-profit public agency that provides electricity service to customers in Contra Costa, Marin, Napa, and Solano counties.
They offer electricity options with 60% to 100% renewable energy, sourced from solar, wind, biogas, geothermal, and small hydroelectric sources.
Visit their websiteLibrary of Things
Did you know you can borrow more than books from the library? Check out our newly expanded Library of Things – brought to you with help from dedicated community volunteers! At Green Fest, visit our Library of Things table on the library plaza to try out cool new gear like a fruit picker, karaoke machine, foldable highchair, portable turntable, folding hand truck, GoPro, bird guides, and more!

Borrow a lightweight, folding hand truck for three weeks and easily haul heavy items. Pick up and return at the Belvedere Tiburon Library only.

Borrow this adjustable-length fruit picker for three weeks and safely pick fruit from tall trees. Pick up and return at the Belvedere Tiburon Library only.

Borrow a foldable, laminated pocket guide for three weeks with everything you need to know about the birds of Marin County. Pick up and return at the Belvedere Tiburon Library only.
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