Volunteer Événements et activités à Castro Valley, CA
Pledge to Ride: Bike to Wherever Days 2026
Friday at 6:00 AM
San Jose · Silicon Valley Bicycle Coalition
Pledge to Ride: Bike to Wherever Days 2026
Friday at 6:00 AM
San Jose · Silicon Valley Bicycle Coalition
JRMF Math Festival at the Roundhouse Market & Conference Center
Fri, May 15, 5:30 PM
San Ramon · Roundhouse Market & Conference Center
JRMF Math Festival at the Roundhouse Market & Conference Center
Fri, May 15, 5:30 PM
San Ramon · Roundhouse Market & Conference Center
National River Cleanup Day at the EEC
Sat, May 16, 9:00 AM
San Jose · Don Edwards San Francisco Bay National Wildlife Refuge Environmental Education Center
National River Cleanup Day at the EEC
Sat, May 16, 9:00 AM
San Jose · Don Edwards San Francisco Bay National Wildlife Refuge Environmental Education Center
National River Cleanup Day 2026 - Site #17: Matadero Creek, Palo Alto
Sat, May 16, 9:00 AM
Palo Alto · 2837 E Bayshore Rd
National River Cleanup Day 2026 - Site #17: Matadero Creek, Palo Alto
Sat, May 16, 9:00 AM
Palo Alto · 2837 E Bayshore Rd
Adopt Adorable Dogs & Puppies Saturday at Dublin Petsmart!
Saturday at 10:00 AM + 34 plus
Dublin · 6960 Amador Plaza Rd
Adopt Adorable Dogs & Puppies Saturday at Dublin Petsmart!
Saturday at 10:00 AM + 34 plus
Dublin · 6960 Amador Plaza Rd
Poker Tournament to Benefit International Justice Mission
Saturday at 7:00 PM
San Francisco · SF Social Club
Poker Tournament to Benefit International Justice Mission
Saturday at 7:00 PM
San Francisco · SF Social Club
National River Cleanup Day 2026 - Site #16: Adobe Creek, Palo Alto
Sat, May 16, 9:00 AM
Palo Alto · 3803 E Bayshore Rd
National River Cleanup Day 2026 - Site #16: Adobe Creek, Palo Alto
Sat, May 16, 9:00 AM
Palo Alto · 3803 E Bayshore Rd
Impactful Speaking for NGOs: 1 Day Session in San Jose, CA
Thu, May 21, 9:00 AM + 1 plus
San Jose · 18 S Second St
Impactful Speaking for NGOs: 1 Day Session in San Jose, CA
Thu, May 21, 9:00 AM + 1 plus
San Jose · 18 S Second St
Nurture Nature: Volunteer Outside at McClellan Ranch Preserve
Sun, May 10, 9:00 AM
Cupertino · McClellan Ranch Preserve
Nurture Nature: Volunteer Outside at McClellan Ranch Preserve
Sun, May 10, 9:00 AM
Cupertino · McClellan Ranch Preserve
Santa Cruz Arbor Day | Tree Planting Volunteers Needed + Kids Activities!
Thu, May 7, 11:00 AM
Santa Cruz · University Terrace Park
Santa Cruz Arbor Day | Tree Planting Volunteers Needed + Kids Activities!
Thu, May 7, 11:00 AM
Santa Cruz · University Terrace Park
Walk for Children - 2026 Save Soil Walkathon in SF East Bay
Sunday at 8:30 AM
San Ramon · San Ramon Central Park
Walk for Children - 2026 Save Soil Walkathon in SF East Bay
Sunday at 8:30 AM
San Ramon · San Ramon Central Park
CERT Refresher - Disaster Psychology
Fri, May 15, 9:00 AM
San Rafael · Albert J. Boro Community Center
CERT Refresher - Disaster Psychology
Fri, May 15, 9:00 AM
San Rafael · Albert J. Boro Community Center
Twilight Marsh Walk
Sat, May 9, 6:45 PM
Fremont · San Francisco Bay National Wildlife Refuge Visitor Center
Twilight Marsh Walk
Sat, May 9, 6:45 PM
Fremont · San Francisco Bay National Wildlife Refuge Visitor Center
Sign Hill Stewards: Habitat Restoration
Friday at 7:30 AM + 4 plus
South San Francisco · Sign Hill Parking Lot
Sign Hill Stewards: Habitat Restoration
Friday at 7:30 AM + 4 plus
South San Francisco · Sign Hill Parking Lot
Heartsaver CPR/AED (4-hour, in-person, $65) - Cupertino 2026
Sat, May 9, 9:00 AM
Cupertino · Cupertino City Hall
Heartsaver CPR/AED (4-hour, in-person, $65) - Cupertino 2026
Sat, May 9, 9:00 AM
Cupertino · Cupertino City Hall
