A look at events around Contra Costa County celebrating earth day and community day of service opportunities April 18-19 and April 25.
Saturday, April 18
Keep Antioch Beautiful
From Earth Day to Arbor Day, let’s work together to build a stronger, cleaner, more beautiful Antioch! Starting Earth Day, join us as we begin our service to the community. Gather friends and family to brainstorm a beautification project for your home, neighborhood, classroom, or local business, and put it into action! Don’t forget to capture your efforts with a photo and send to the Antioch Recreation Department! On Arbor Day, join our Parks and Rec Department as we plant trees at a local park. Be part of the volunteers who will serve downtown near Waldie Plaza and at the Antioch Community Center before enjoying a volunteer lunch This Year’s Community Services
- Trash Cleanup at Nick Rodriguez Community Center
- Landscaping Projects at the Antioch Skatepark
- Plant Trees for Arbor Day
For more information: click here
Brentwood Community Day of Service
Community Day of Service is a coordinated, citywide effort that brings together local service groups, nonprofits, community organizations, and the City of Brentwood for one powerful morning of giving back. This event celebrates the impact of partnership and volunteerism, connecting community members with meaningful, hands-on service projects across the city. From park and neighborhood cleanups to landscaping and planting projects, to supporting local nonprofits and other community improvement efforts, there are opportunities for volunteers of all ages and abilities to make a difference. On Saturday, April 18, from 9:00 a.m. to 12:00 p.m., volunteers will participate in projects hosted at various locations throughout Brentwood. Participants are encouraged to register in advance and select the project that best fits their interests. Community organizations interested in hosting a service project are invited to submit a project proposal at https://forms.gle/AdAwsSAWMyV1dTCP7.
City of Concord
Join the City of Concord in celebrating Earth Day this April by giving back to our local environment. A series of hands-on volunteer events will take place across the city, offering residents a chance to support parks, plant trees, and help care for Concord’s urban forest.
- Saturday, April 18 (9:00 a.m. – 12:00 p.m.)
- Markham Nature Park (1202 La Vista Avenue): Mulch spreading + nature walk
- Cambridge Park (1135 Lacey Lane): Mulching + tree planting
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Hillcrest Community Park (Grant Street & Olivera Road): Creek cleanup
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Saturday, April 25 (9:00 a.m. – 12:00 p.m.)
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Willow Pass Park (2748 E. Olivera Road): Tree planting + mulching
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Brazil Quarry Park (Kent Way): Fence repair, mulching + tree planting
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Lime Ridge Open Space (3701 Treat Boulevard): Mulching, weeding + litter removal
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Hillcrest Community Park (Grant Street & Olivera Road): Creek cleanup
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Martinez: John Muir Birthday, Earth Day Celebration
Join the National Park Service (NPS) and the John Muir Association in a festive celebration at the John Muir National Historic Site in Martinez, CA (4202 Alhambra Avenue on Highway 4 in Martinez, California) The event combines John Muir’s birthday and Earth Day, offering family-friendly activities, live music, food vendors, and exhibits by national parks and local environmental groups. For more information go to www.nps.gov/jomu.
- View 2026 schedule
- View Conservation Award Recipients and Achievements
- Map of event
- Register for a booth at John Muir Birthday/Earth Day
Event Highlights
- Meet “John Muir” Interact with a reenactor portraying John Muir and visit the giant sequoia he planted over 130 years ago.
- Tour the Victorian Home Explore Muir’s 1882 home and stroll through the surrounding historic orchards.
- Enjoy Live Music Listen to performances by local bands and musicians throughout the day.
- Join the Silent Auction Bid on unique items to support local conservation programs.
- Explore Hands-On Exhibits Discover interactive displays and activities for visitors of all ages.
- Attend the Awards Ceremony Celebrate local conservation heroes at the John Muir Conservation Awards.
- Youth Activities with Rangers Participate in fun, educational programs led by National Park Service rangers.
- Food & Refreshments Purchase meals, snacks, and beverages from a local food vendor.
Saturday, April 18, 2026
Programs run from 10:00 AM to 4:00 PM | Gates close at 5:00 PM
This family-friendly event features live music performances, interpretive storytelling and walking tours, youth activities with National Park Service rangers, and hands-on exhibits. Enjoy special presentations, guest speakers, and the John Muir Conservation Awards—all set against the beautiful backdrop of John Muir National Historic Site.
Schedule of Events
- 10:00 a.m. — Gates Open with Bagpipe Procession
- 10:30 a.m. STAGE — Music by the Piedmont Highlanders Drums & Pipes Band
- 11:15 a.m. STAGE — Music by Jack Grady O’Neil from Ancestral Water
- 11:30 a.m. Silent Auction Opens
- 11:45 a.m. STAGE —John Muir tells stories from his life— with Ranger Frank Helling portraying John Muir
- 12:15 p.m. STAGE — Music by The Gaelic Muses
- 1:00 p.m. STAGE — John Muir Conservation Awards presented
- 1:20 p.m. STAGE — John Muir birthday celebration
– K. Lynn Berry, General Superintendent,
– John Muir Association, Linda Vida, President.
– Join John Muir for birthday cake!
- 1:50 p.m. STAGE — Music by The Irish Newsboys
- 2:00 p.m. Silent Auction Closes (must be present to win)
- 3:00 p.m. STAGE — Music by San Francisco Scottish Fiddlers
- 4:00 p.m. John Muir Birthday–Earth Day Celebration Ends (Gates close at 5:00 p.m.)
For more details, visit the John Muir Association website or call the John Muir National Historic Site at (925) 228-8860, ext. 6400.
North Richmond Earth Day
Date: Saturday, April 18th, 9:00 to 2:30 PM Multiple sites in NR
Volunteers will work on service projects at different sites in North Richmond, then come together for a fun community festival. Volunteer from 9-11:30 AM with the Watershed Project at the new Shields-Reid Park link here or Wildcat Creek Cleaup link here. Festival will be at Lucky’s A’s Park will be from 10:30-2:30 PM.
Pinole Earth Day
Date: Saturday, April 18th, 9:00 to 11:30AM, Fernandez Park
Our Power, Our Planet. Walk with us for clean air, clean water, renewable energy, and the protection of our health and the countless species that share this Earth with us. Environmental partners will be on-site with activities and educational resources to inspire and empower action. More information, click here
Pittsburg Civic Pride Day
Unity Park Earth Day (Richmond)
Date: Saturday, April 18th, 10:00 to 1:00PM, 1605 Ohio Ave
The Earth Day Celebration will feature interactive activities, live entertainment. Tie-Dye Activity, Smoothie Bike, Closet Swap & Upcycling Clothing. Meet-and-Greet Alpacas – A fun and educational experience. Live Music, Free Dumpster Service. Free Compost Volunteer with GroundWork Richmond Link here
Register for festival link here
Walnut Creek Day of Service
Join the City of Walnut Creek for its 2026 Day of Service event at 9:00 am. Walk-ins are welcome on Saturday For questions, email [email protected]. Projects include:
- Schools
- Lindsay Wildlife Landscaping
For more information, visit: https://www.walnutcreekca.gov/community/get-involved/community-service-day
Sunday, April 19
Pleasant Hill Earth Day Celebration
Downtown Pleasant Hill is excited to invite the community to its Earth Day celebration, the perfect way to kick off the spring season. This free, family-friendly event offers something for everyone, with activities that include flowerpot coloring and potting as well as face painting (while supplies last).
- When: Sunday, April 19 from 1:00 to 3:00 pm
- Where: Downtown Pleasant Hill (near Jack’s Restaurant & Bar ~105 Crescent Drive, Pleasant Hill 94523)
Downtown Pleasant Hill delivers the ultimate shopping experience in a distinctive outdoor setting where visitors can immerse their shopping senses with a unique blend of specialty retailers, personal services, and restaurants.
Saturday, April 25
El Cerrito Earth Day
Date: Saturday, April 25th, 9:00 to 12:00PM, Multiple locations Six locations to get involved and make a difference. Help tidy parks & public spaces. Pick up litter to reduce the amount of trash that ends up in our creeks, waterways and the Bay. Remove invasive plants and weeds Participate in activities that beautify our community’s natural areas. To register, click here.
Oakley Day of Service
Join your Oakley neighbors for the 2026 Oakley Day of Service on April 25th from 8:00 am to 12:00 pm. This special event brings community members, families and friends together to give back through hands-on volunteer projects that make a lasting impact. With projects for all ages and ability levels, there’s a way for everyone to get involved. Additionally, The Red Cross will be holding a blood drive at the Oakley Recreation Center throughout the day and a variety of non-profit organizations will be holding donation drives during the event.
The day will begin with a welcome breakfast at the Oakley Recreation Center before volunteers head out to their project sites. Individual projects have been posted on our Recreation website. Please note that this is a free event but registration for a particular project is required by all volunteers who participate. Each volunteer will receive free breakfast and an event t-shirt.
- Project 1: Creek Clean Up at Creekside Park
- Project 2: Big Break Sand Dune Restoration at Big Break Regional Park
- Project 3: Studio 55 Community Garden at the Oakley Recreation Center
- Project 4: Tree Planting at Holly Creek Park
- Project 5: Tree Preservation at Creekside Park
Celebrate Earth Day with the Park District
OAKLAND, Calif. — Earth Day is a special day for the Park District, an annual reminder to cherish, preserve, and protect vital natural resources. It’s a reminder to celebrate the natural spaces we are so lucky to have right here in the East Bay and to renew a shared commitment to keeping them beautiful for generations to come.
Celebrate Earth Day by spending time in nature: enjoy a hike or ride, plan a picnic, or volunteer at one of the Park District’s clean-up opportunities (see locations below). Don’t miss this month’s Earth Day programs taking place at locations throughout the Park District; for information visit ebparks.org/we-celebrate/earth-day.Volunteer Opportunities
Each year, the Park District hosts multiple Earth Day volunteer events at various parks. Volunteer projects include shoreline and beach clean-ups, removing invasive plants, gardening, and trail work. Most projects welcome walk-up and drop-in volunteers, although some require pre-registration. For groups of 10 or more people, please register using the links below and then call (510) 544-2229 or email [email protected] to notify staff.
Saturday, Apr. 25, Earth Day Volunteer Event Locations (9am to Noon)
- Anthony Chabot Regional Park Skyline Litter Pick-up (Oakland)
• Crown Memorial State Beach Cleanup (Alameda)
• Del Valle Regional Park Shoreline Cleanup (Livermore)
• Lake Chabot Regional Park Garden Maintenance (Castro Valley)
• Martin Luther King Jr Shoreline Cleanup – Oakport Staging Area (Oakland)
• Point Pinole Regional Shoreline Invasive Plant Removal (Pinole)
• Quarry Lakes Regional Recreation Area Shoreline Cleanup (Fremont)
Wednesday, Apr. 22, Earth Day Volunteer Event (11am to 2pm)
Earth Day Activities in Regional Parks
Celebrate Earth Day at one of these programs.
- Wednesday Walk: Earth Day: Anthony Chabot Regional Park, Wednesday, Apr. 22, 9:30am-12:30pm
• Earth Day Minus Low Tide Walk: Crab Cove, Saturday, Apr. 25, 2-3pm
• Earth Day Watercolors: Coyote Hills, Sunday, Apr. 26, 1-2:30pm
More upcoming events around Contra Costa County, click here
