Événements et activités volunteer à Atherton, CA
Sunset Restoration at Russian Ridge Open Space Preserve
Wed, May 27, 5:30 PM
La Honda · Russian Ridge Preserve Parking
Sunset Restoration at Russian Ridge Open Space Preserve
Wed, May 27, 5:30 PM
La Honda · Russian Ridge Preserve Parking
Sistah Scifi Popup Shop: Bay Area Book Festival Bookworm Vending
Sun, May 31, 11:00 AM
Berkeley · 2151 Martin Luther King Jr Way
Sistah Scifi Popup Shop: Bay Area Book Festival Bookworm Vending
Sun, May 31, 11:00 AM
Berkeley · 2151 Martin Luther King Jr Way
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
National River Cleanup Day 2026 - Site #01: Calabazas Creek, Sunnyvale
Sat, May 16, 9:00 AM
Santa Clara · Wildwood Avenue
National River Cleanup Day 2026 - Site #01: Calabazas Creek, Sunnyvale
Sat, May 16, 9:00 AM
Santa Clara · Wildwood Avenue
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
Stewardship Saturday at the Don Edwards San Francisco Bay NWR in Fremont
Sat, May 9, 9:00 AM
Fremont · San Francisco Bay National Wildlife Refuge Visitor Center
Stewardship Saturday at the Don Edwards San Francisco Bay NWR in Fremont
Sat, May 9, 9:00 AM
Fremont · San Francisco Bay National Wildlife Refuge Visitor Center
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
Keep Hayward Clean & Green 8/22/26 Neighborhood Cleanup
Sat, Aug 22, 8:00 AM
Hayward · Palma Ceia Park
Keep Hayward Clean & Green 8/22/26 Neighborhood Cleanup
Sat, Aug 22, 8:00 AM
Hayward · Palma Ceia Park
National River Cleanup Day 2026 - Site #12: Guadalupe River, Santa Clara
Sat, May 16, 9:00 AM
Santa Clara · 4321 Lick Mill Blvd
National River Cleanup Day 2026 - Site #12: Guadalupe River, Santa Clara
Sat, May 16, 9:00 AM
Santa Clara · 4321 Lick Mill Blvd
National River Cleanup Day 2026 - Site #13: Saratoga Creek, Santa Clara
Sat, May 16, 9:00 AM
Santa Clara · Maywood Park
National River Cleanup Day 2026 - Site #13: Saratoga Creek, Santa Clara
Sat, May 16, 9:00 AM
Santa Clara · Maywood 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 #08: Saratoga Creek, Santa Clara
Sat, May 16, 9:00 AM
Santa Clara · Everett N. "Eddie" Souza Park
National River Cleanup Day - Site #41: Sunnyvale East Channel, Sunnyvale
Sat, May 16, 9:00 AM
Sunnyvale · Near Britton Ave, Sunnyvale
National River Cleanup Day - Site #41: Sunnyvale East Channel, Sunnyvale
Sat, May 16, 9:00 AM
Sunnyvale · Near Britton Ave, Sunnyvale
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
