Événements et activités volunteer à Castro Valley, CA
National River Cleanup Day 2026 - Site #39: Calabazas Creek, Santa Clara
Sat, May 16, 1:00 PM
Santa Clara · Creek Entrance near 1445 Pomeroy Ave
National River Cleanup Day 2026 - Site #39: Calabazas Creek, Santa Clara
Sat, May 16, 1:00 PM
Santa Clara · Creek Entrance near 1445 Pomeroy Ave
National River Cleanup Day 2026 - Site 24: El Camino Storm Drain, Sunnyvale
Sat, May 16, 9:00 AM
Sunnyvale · El Camino Storm Drain near Willow Ave
National River Cleanup Day 2026 - Site 24: El Camino Storm Drain, Sunnyvale
Sat, May 16, 9:00 AM
Sunnyvale · El Camino Storm Drain near Willow Ave
UC Environmental Stewards: California Naturalist Certification Course
Sat, Oct 3, 9:30 AM
Oakland · Oakland Zoo
UC Environmental Stewards: California Naturalist Certification Course
Sat, Oct 3, 9:30 AM
Oakland · Oakland Zoo
Paddles for a Purpose: The SoSF Pickleball Classic
Sat, May 16, 2:00 PM
San Francisco · Bay Club Gateway
Paddles for a Purpose: The SoSF Pickleball Classic
Sat, May 16, 2:00 PM
San Francisco · Bay Club Gateway
Volunteer Meeting (Weekly)
Tomorrow at 5:30 PM + 7 en plus
Oakland · The Museum of Art and Digital Entertainment
Volunteer Meeting (Weekly)
Tomorrow at 5:30 PM + 7 en plus
Oakland · The Museum of Art and Digital Entertainment
National River Cleanup Day 2026 - Site #04: Guadalupe River, San Jose
Sat, May 16, 9:00 AM
San Jose · 1701 Airport Blvd
National River Cleanup Day 2026 - Site #04: Guadalupe River, San Jose
Sat, May 16, 9:00 AM
San Jose · 1701 Airport Blvd
Edenvale Park Monthly Clean Up
Wed, Jun 3, 3:00 PM + 6 en plus
San Jose · Hayes Mansion San Jose, Curio Collection by Hilton
Edenvale Park Monthly Clean Up
Wed, Jun 3, 3:00 PM + 6 en plus
San Jose · Hayes Mansion San Jose, Curio Collection by Hilton
San Mateo Farmers' Market Compost Volunteer/ Voluntariado de Abono Orgánico
Sat, May 16, 8:30 AM + 2 en plus
San Mateo · San Mateo Farmers' Market
San Mateo Farmers' Market Compost Volunteer/ Voluntariado de Abono Orgánico
Sat, May 16, 8:30 AM + 2 en plus
San Mateo · San Mateo Farmers' Market
Twilight Marsh Walk
Sat, Jun 20, 6:45 PM
Fremont · San Francisco Bay National Wildlife Refuge Visitor Center
Twilight Marsh Walk
Sat, Jun 20, 6:45 PM
Fremont · San Francisco Bay National Wildlife Refuge Visitor Center
The 10th Meeting for Advanced Electron Beam Lithography (MAEBL)
Tue, Oct 13, 2:00 PM
Berkeley · UC Berkeley
The 10th Meeting for Advanced Electron Beam Lithography (MAEBL)
Tue, Oct 13, 2:00 PM
Berkeley · UC Berkeley
Intro/Community Painting class: Tending the Creative Fire
Sat, May 23, 1:00 PM + 2 en plus
San Francisco · The Center for Creative Exploration
Intro/Community Painting class: Tending the Creative Fire
Sat, May 23, 1:00 PM + 2 en plus
San Francisco · The Center for Creative Exploration
National River Cleanup Day 2026 - Site #08: Saratoga Creek, Santa Clara
Sat, May 16, 9:00 AM
Santa Clara · Everett N. "Eddie" Souza Park
National River Cleanup Day 2026 - Site #08: Saratoga Creek, Santa Clara
Sat, May 16, 9:00 AM
Santa Clara · Everett N. "Eddie" Souza Park
National River Cleanup Day 2026 - Site #02: Regnart Creek, Cupertino
Sat, May 16, 9:00 AM
Cupertino · 10235 Parkside Ln
National River Cleanup Day 2026 - Site #02: Regnart Creek, Cupertino
Sat, May 16, 9:00 AM
Cupertino · 10235 Parkside Ln
San Jose Race to Restore
Sat, May 23, 10:00 AM
San Jose · Flickinger Park, Flickinger Ave. & Tourney Dr.
San Jose Race to Restore
Sat, May 23, 10:00 AM
San Jose · Flickinger Park, Flickinger Ave. & Tourney Dr.
Gambier Plaza & Lego Garden Cleanup
Sun, May 31, 9:00 AM + 4 en plus
San Francisco · Burrows Street & Gambier Street
Gambier Plaza & Lego Garden Cleanup
Sun, May 31, 9:00 AM + 4 en plus
San Francisco · Burrows Street & Gambier Street
San Mateo Phoenix Garden Compost Volunteer / Voluntariado de Abono Orgánico
Sat, May 16, 1:30 PM + 2 en plus
San Mateo · 222 Paul Scannell Dr
San Mateo Phoenix Garden Compost Volunteer / Voluntariado de Abono Orgánico
Sat, May 16, 1:30 PM + 2 en plus
San Mateo · 222 Paul Scannell Dr
