Candlestick Point State Recreation Area | San Francisco, CA 

Support habitat restoration and park improvements at California’s first urban state park. Volunteer activities may include removing invasive plants and/or planting native species, assisting with park maintenance such as trash pickup, or enhancing visitor amenities such as building picnic areas.  

• Time of year: Flexible
• Days of the week: Tuesday, Wednesday, Thursday
• Time of day: Flexible, depending on staff availability
• Max capacity: 50 volunteers 

Half Moon Bay State Beach | Half Moon Bay, CA 

Join us in restoring coastal dune and scrub habitats along the picturesque San Mateo coastline. Volunteer activities may include removing invasive plants, planting native species, and/or sheet mulching to preserve and enrich newly restored areas. 

• Time of year: Flexible 
• Days of the week: Flexible, depending on staff availability
• Time of day: Flexible, depending on staff availability (mornings preferred)
• Max capacity: 200 volunteers   

Mount Diablo State Park | Walnut Creek, CA  

Enjoy the park’s panoramic views while helping to protect diverse ecosystems and supporting essential maintenance efforts. Volunteer activities may include removing invasive plants, assisting with campground maintenance projects, or participating in fuel reduction efforts to reduce wildfire risk.  

• Time of year: Winter or Spring
• Days of the week: Wednesday
• Time of day: 9am-12pm
• Max capacity: 60 volunteers 

Folsom Lake State Recreation Area or Folsom Powerhouse State Historic Park | Folsom, CA  

Help reduce wildfire risk and maintain park health to protect the natural habitats, recreational spaces, and historical features that make these sites special. Volunteer activities may include removing brush and invasive plant species, picking up trash, maintaining orchards, or assisting with trail maintenance. 

• Time of year: October - May
• Days of the week: Monday - Friday
• Time of day: 9am-12pm, or 8am-11am if needed to avoid heat
• Max capacity: 30 volunteers (may be able to accommodate larger groups for trash pickup events) 

Baldwin Hills Scenic Overlook | Culver City, CA 

Enjoy panoramic views of Los Angeles while helping to restore native habitat and protect biodiversity at this iconic urban park. Volunteer activities may include removing invasive plants, planting native species, and/or collecting and propagating seeds for future restoration projects. 

• Time of year: Spring preferred, Fall events possible on a case-by-case basis
• Days of the week: Flexible, depending on staff availability
• Time of day: 9am-12pm, or 8am-11am if needed to avoid heat
• Max capacity: 40 volunteers  

Santa Susana Pass State Historic Park | Chatsworth, CA 

Help maintain and restore scenic trails in a park rich with historical, cultural, and natural significance. Volunteer activities may include clearing brush and restoring tread along the trails, removing graffiti, or picking up non-historic trash. Please note: trail maintenance work is strenuous and involves moderate to difficult hike-in requirements.   

• Time of year: Fall and Spring
• Days of the week: Flexible, depending on staff availability
• Time of day: 9am-1pm, or 8am-12pm if needed to avoid heat
• Max capacity: 20 volunteers  

Chino Hills State Park | Chino Hills, CA 

Help restore native habitats and maintain this expansive park, a vital wildlife corridor that supports biodiversity and recreation. Volunteer activities may include removing invasive plants, planting native species, or assisting with trail maintenance and park improvement projects.  

• Time of Year: October – February
• Days of the week: Flexible, depending on staff availability
• Time of day: 9am-12pm
• Max capacity: 20 volunteers  

Silverwood Lake State Recreation Area | Hesperia, CA 

Help maintain this scenic lakeside park to support environmental health and enhance the visitor experience. Volunteer activities may include beach clean-ups, graffiti removal, or assisting with park refurbishment projects.  

• Time of year: Fall or Spring 
• Days of the week: Wednesdays or Thursdays
• Time of day: 9am-12pm, or 8am-11am if needed to avoid heat
• Max capacity: 30 volunteers 

Crystal Cove State Park | Newport Beach, CA 

Help restore native habitats and maintain the beauty of the diverse landscape at this coastal park. Volunteer activities may include removing invasive plants, planting native species, or supporting trail maintenance projects. Please note: volunteer work is strenuous and may involve moderate hike-in requirements.   

• Time of year: Fall - Spring
• Preferred days of the week: Monday - Friday
• Preferred event time: Varies, typically 8am-12pm
• Max capacity: 25 volunteers 

Huntington State Beach or Bolsa Chica State Beach | Huntington Beach, CA 

Help protect California’s vital coastal habitat and keep our oceans clean. Volunteer activities may include participating in beach clean-ups, removing invasive species, assisting with trail maintenance, or helping to prepare and protect habitat for the endangered least tern nesting season. With minimal hike-in requirements, this site is a great choice for groups that may require accessibility accommodations. 

• Time of year: Flexible
• Days of the week: Flexible, depending on staff availability
• Event time: Flexible, 2 hour timeframe
• Max capacity: 200 volunteers (larger events possible for an additional fee) 

San Clemente State Beach | San Clemente, CA 

Help restore native habitats and maintain the coastal landscape including an important monarch overwintering site at this popular beach, located halfway between Los Angeles and San Diego. Volunteer activities may include supporting trail maintenance projects, habitat restoration, and park improvement projects. Please note: trail maintenance work is strenuous and may involve moderate hike-in requirements.     

• Time of year: Fall - Spring
• Days of the week: Monday - Friday
• Event time: Varies, typically 8am-12pm
• Max capacity: 25 volunteers 

Old Town San Diego State Historic Park | San Diego, CA 

Help support the maintenance and beautification of this unique historical site. Volunteer activities may include trash clean-ups or other park enhancement projects to improve the visitor experience.  

• Time of year: Summer or Winter
• Preferred days of the week: Tuesday - Saturday
• Preferred event time: Mornings, 2-3 hour events
• Max capacity: 20 volunteers 

South Carlsbad State Beach, Torrey Pines State Beach, Torrey Pines State Natural Reserve, or Silver Strand State Beach | San Diego County, CA 

Join us in restoring and protecting vital habitat along San Diego’s stunning coastline. Volunteer activities may include removing invasive plants, beach clean-ups, or trail maintenance projects. 

• Time of year: September – June
• Days of the week: Monday – Thursday
• Time of day: 9am-12pm
• Max capacity: 20 volunteers 

Tijuana Estuary Visitor Center | Imperial Beach, CA 

Join us in restoring and protecting vital habitat at this unique ecological site. Volunteer activities may include removing invasive plants and trail maintenance. 

• Time of year: September – June 
• Day of the week: Monday – Friday, Fridays preferred
• Time of day: 9am-12pm
• Max capacity: 20 volunteers 

Border Field State Park | Imperial Beach, CA

Join us in restoring and protecting vital habitat at this ecologically and culturally significant site, containing the southwestern most point in the continental U.S. Volunteer activities may include removing invasive plants and beach clean-ups. Please note: availability at this site depends on park road conditions. 

• Time of year: October – January for beach cleanups; September – June for invasive plant removal
• Day of the week: Monday – Thursdays, Wednesdays preferred
• Time of day: 9am-12pm
• Max capacity: 20 volunteers