High School Youth Stewards at Stulsaft Park - Session #7
Meet new friends, learn about nature, enhance your observational skills, and help restore the natural ecosystems within Stulsaft Park!
Volunteer Outdoors in Alviso at the Burrowing Owl Project (18+)
Join us to improve habitat for the threatened South Bay burrowing owl population. This opportunity is for those aged 18+.
High School Youth Stewards at San Francisquito Creek - Session #7
Meet new friends, learn about nature from expert staff, enhance your observation skills, & help sustain pockets of biodiversity in Palo Alto
Volunteer Outside in Palo Alto at Pearson-Arastradero Preserve
Volunteer your time with Grassroots Ecology and Peninsula Open Space Trust to help increase biodiversity in Palo Alto!
Nurture Nature: Volunteer Outside at McClellan Ranch Preserve
Volunteer your time to improve habitat health near Stevens Creek!
High School Youth Stewards at Stulsaft Park - Session #8
Meet new friends, learn about nature, enhance your observational skills, and help restore the natural ecosystems within Stulsaft Park!
Volunteer Outdoors at Redwood Grove in Los Altos
Volunteer your time to help increase biodiversity in Los Altos at Redwood Grove Nature Preserve!
High School Youth Stewards at San Francisquito Creek - Session #8
Meet new friends, learn about nature from expert staff, enhance your observation skills, & help sustain pockets of biodiversity in Palo Alto
Volunteer as a Greeter/Docent at the Growing Natives Garden Tour 2026
Volunteer as a Greeter/Docent at the Growing Natives Garden Tour 2026.
Volunteer Outside: Habitat Restoration at Byrne Preserve in Los Altos Hills
Volunteer your time to help increase biodiversity at Byrne Preserve by stewarding local ecosystems!
Celebrate the Earth: Restoration and Forest Bathing at Huddart Park
Join San Mateo County Parks Foundation and Grassroots Ecology at Huddart Park for habitat restoration and forest bathing.
Volunteer as a Greeter/Docent at the Growing Natives Garden Tour 2026
Volunteer as a Greeter/Docent at the Growing Natives Garden Tour 2026.
Earth Day Habitat Restoration at Russian Ridge Open Space Preserve
Celebrate the Earth by volunteering to help increase biodiversity at Russian Ridge Open Space Preserve!
Wildflowers and Fire Ecology Walk in Los Altos Hills at Byrne Preserve
Join us as we explore spring wildflowers and fire ecology at Byrne Preserve!
Volunteer Outdoors in East Palo Alto at Ravenswood Preserve
Volunteer your time with Grassroots Ecology and Peninsula Open Space Trust to help increase biodiversity in East Palo Alto!
City Nature Challenge Bioblitz at Shoreline in Mountain View
Let's discover and document what lives at the baylands.
CNPS 51st Annual Wildflower Show
Shop in-person for a small selection of native plants, or pick up pre-orders, at CNPS SCV’s Wildflower Show.
Seniors 65+: Volunteer Outdoors in Cupertino at McClellan Ranch Preserve
Seniors 65+: help maintain our native plant gardens!
Volunteer Outdoors in Los Gatos at Cherry Springs Pond
Volunteer your time to increase biodiversity at Cherry Springs in Sierra Azul Open Space Preserve.
Wild About Wildflowers Naturalist Walk at Pearson-Arastradero Preserve
Join for a guided walk highlighting the beauty of native CA spring wildflowers!
High School Youth Stewards at San Francisquito Creek - Session #6
Meet new friends, learn about nature from expert staff, enhance your observation skills, & help sustain pockets of biodiversity in Palo Alto
High School Youth Stewards at Stulsaft Park - Session #6
Meet new friends, learn about nature, enhance your observational skills, and help restore the natural ecosystems within Stulsaft Park!
Volunteer Outdoors in East Palo Alto at Ravenswood Open Space Preserve
Volunteer your time with Grassroots Ecology to help increase biodiversity in East Palo Alto!
High School Youth Stewards at San Francisquito Creek - Session #5
Meet new friends, learn about nature from expert staff, enhance your observation skills, & help sustain pockets of biodiversity in Palo Alto
Volunteer Outside in Cupertino at McClellan Ranch Preserve
Volunteer your time to improve habitat health near Stevens Creek!
College Student & Young Professional Workday Series - Session #10
Restore ecosystems, meet new friends, & explore nature on short hikes at Byrne Preserve, Los Altos Hills and Foothills Preserve, Palo Alto
High School Youth Stewards at Stulsaft Park - Session #5
Meet new friends, learn about nature, enhance your observational skills, and help restore the natural ecosystems within Stulsaft Park!
Volunteer Outdoors in Los Gatos at Bear Creek Redwoods
Volunteer your time to increase biodiversity at Bear Creek Redwoods Open Space Preserve!
Volunteer Outdoors in MV Shoreline Marsh Habitat Restoration
Volunteer your time with Grassroots Ecology to help increase biodiversity in Mountain View!
High School Youth Stewards at San Francisquito Creek - Session #4
Meet new friends, learn about nature from expert staff, enhance your observation skills, & help sustain pockets of biodiversity in Palo Alto
College Student & Young Professional Workday Series - Session #9
Restore ecosystems, meet new friends, & explore nature on short hikes at Byrne Preserve, Los Altos Hills and Foothills Preserve, Palo Alto
High School Youth Stewards at Stulsaft Park - Session #4
Meet new friends, learn about nature, enhance your observational skills, and help restore the natural ecosystems within Stulsaft Park!
Volunteer Outside: Habitat Restoration at Byrne Preserve in Los Altos Hills
Volunteer your time to help increase biodiversity at Byrne Preserve by removing invasive species!
Portola Valley Annual Broom Pull
Join the Portola Valley Conservation Committee to remove invasive broom throughout the town.
Volunteer Outdoors in Palo Alto at Foothills Nature Preserve
Volunteer your time to increase biodiversity at Foothills Nature Preserve!
Volunteer Outdoors in Palo Alto at Pearson-Arastradero Preserve
Join Grassroots Ecology to support biodiversity at a local nature preserve!
Seniors (65+) Volunteer Outdoors in East Palo Alto at Cooley Landing
Volunteer your time with Grassroots Ecology and Peninsula Open Space Trust to help increase biodiversity in East Palo Alto!
High School Youth Stewards at San Francisquito Creek - Session #3
Meet new friends, learn about nature from expert staff, enhance your observation skills, & help sustain pockets of biodiversity in Palo Alto
College Student & Young Professional Workday Series - Session #8
Restore ecosystems, meet new friends, & explore nature on short hikes at Byrne Preserve, Los Altos Hills and Foothills Preserve, Palo Alto
High School Youth Stewards at Stulsaft Park - Session #3
Meet new friends, learn about nature, enhance your observational skills, and help restore the natural ecosystems within Stulsaft Park!
Summer Naturalist Internship Info Session #2
Online info session for Grassroots Ecology's 9-week Naturalist Internship (June 15 – August 14, 2026).
Nurture Nature: Volunteer Outside at McClellan Ranch Preserve
Volunteer your time to improve habitat health near Stevens Creek!
Volunteer Outdoors at Redwood Grove in Los Altos
Volunteer your time to help increase biodiversity in Los Altos at Redwood Grove Nature Preserve!
High School Youth Stewards at San Francisquito Creek - Session #2
Meet new friends, learn about nature from expert staff, enhance your observation skills, & help sustain pockets of biodiversity in Palo Alto
College Student & Young Professional Workday Series - Session #7
Restore ecosystems, meet new friends, & explore nature on short hikes at Byrne Preserve, Los Altos Hills and Foothills Preserve, Palo Alto
Seniors 65+: Volunteer Outdoors in Cupertino at McClellan Ranch Preserve
Seniors 65+: help maintain our native plant gardens!
High School Youth Stewards at Stulsaft Park - Session #2
Meet new friends, learn about nature, enhance your observational skills, and help restore the natural ecosystems within Stulsaft Park!