Volunteer: Invasive Plant Removal

Thu · Oct 29·9 AM·Marsh Creek Regional Trail (Oakley): Cypress Staging Area

Guided naturalist walk at Marsh Creek Regional Trail Cypress Staging Area showcases local bird biodiversity for novice and seasoned birders, free drop‑in, adult participation required, all ages.

Thu · Oct 29·9 AM·Marsh Creek, Oakley

Guided birding walk at Marsh Creek’s paved, flat trail offers immersive avian biodiversity experience for novice and seasoned birders, free drop‑in for ages 18+.

Thu · Oct 29·9:15 AM·Palo Alto Junior Museum & Zoo

Amazing Animals at the Palo Alto Junior Museum & Zoo.

Thu · Oct 29·8:30 AM – 10:30 AM

Hard‑pack gravel trail provides a 1‑to 1½‑mile hike with a gentle 300‑foot climb and spectacular views, open to hikers, mountain bikers and horses, requires free permit application.

Wed · Oct 28·8:30 AM – 10:30 AM·Spring Lake Regional Park

Leisurely bird walks at Spring Lake Regional Park cater to all experience levels.

Wed · Oct 28·9:30 AM – 12:30 PM·Doran Regional Park

Ice plant removal volunteers restore native coastal habitat at Doran Regional Park.

Sat · Oct 31·2 PM – 4 PM·Spring Lake Regional Park

Kayak: Spooky Paddle! at Spring Lake Regional Park delivers a chilling Halloween afternoon on the water.

Tue · Nov 3·10 AM – 12 PM·Helen Putnam Regional Park

Low‑impact 2‑mile walk for seniors at Helen Putnam Regional Park, Sonoma County, for ages 55 and up.