Volunteer Outdoors at Redwood Grove in Los Altos

Sat · Nov 7·10 AM – 4 PM·Los Altos Community Center, 97 Hillview Ave., Los Altos, CA 94022, 97 Hillview Avenue, Los Altos

Friends of the Los Altos Library host a community book sale of fiction, non-fiction and media at Los Altos Community Center, $10 entry, $5 bag sale, all ages.

Sat · Nov 7·10:30 AM – 12 PM·Los Altos Library, Orchard Room, Los Altos

American Sign Language storytime with songs and stories, followed by play with age‑appropriate toys, at Los Altos Library Orchard Room; bring a blanket, for ages 1 and under.

Sat · Nov 7·5:45 PM·Shoup Garden House in Los Altos

Potluck dinner with speaker Stu Weiss and a silent auction of books, art and textiles at Shoup Garden House in Los Altos.

Sat · Nov 7·McClellan Ranch Preserve, 22221 McClellan Rd, 95014 · Cupertino

Park Rangers lead a bird‑identification hike through McClellan Ranch Preserve’s riparian trails, spotting Red‑Shoulder Hawks, Screech Owls and other species; registration required, adults accompany children.

Sat · Nov 7·9 AM – 12 PM·Hidden Villa, 26870 Moody Road, Los Altos Hills, California

Volunteer with Hidden Villa's farm team, tending crops and preparing food for the local community.

Sat · Nov 7·9:30 AM – 11:30 AM·O'Donohue Educational Farm, 175 Electioneer Rd, Stanford, CA 94305 · Palo Alto

Volunteers work on weeding, planting, irrigation, composting, mulching and flower deadheading at O'Donohue Educational Farm, ages 10+, with guardians required for 10‑14‑year‑olds.

Fri · Oct 30·5:30 PM – 8:30 PM·Pearson-Arastradero Preserve, 1530 Arastradero Road, Palo Alto, CA, 94304

Night hike at Pearson-Arastradero Preserve offers after‑dark nature exploration in a spooky Halloween spirit.

Sat · Oct 31·9:30 AM – 12:30 PM·Redwood Creek, 353 Main Street, Redwood City, CA, 94063

Volunteer at Redwood Creek with Grassroots Ecology to restore habitat and boost biodiversity.

Sat · Oct 31·9:30 AM – 12 PM·1 Alma Street, Menlo Park, CA, 94025

Volunteer to garden at Alma Pollinator Garden, increasing and maintaining native biodiversity.