Friends of Sausal Creek: Bridgeview Trailhead

Sun · Oct 25·Dimond Park Historical Scout Hut, Oakland, CA 94602

Sausal Creek Trail Stewardship Crew restores trails in Dimond Canyon at Dimond Park Historical Scout Hut.

Sun · Oct 25·9 AM·Huckleberry, Oakland

Steep loop hike at Huckleberry Botanic Regional Preserve showcases Golden Chinquapin and other plants; grippy footwear required, bring water and snacks, drop‑in, ages 7 and up.

Sun · Oct 25·400 Perkins Street, Oakland, CA 94610

Community Cleanup at 400 Perkins Street gathers volunteers to clean the neighborhood, lake, and surrounding areas, rain or shine, every Sunday.

Sun · Oct 25·9 AM – 1 PM·Temescal Farmers' Market, North Oakland DMV lot, 5300 Claremont Ave, Oakland, CA 94618

Farmers' market in North Oakland DMV lot beside Frog Park, offering mobile knife sharpening on 2nd and 4th Sundays, accepts WIC, EBT, Market Match, Veggie Rx all ages.

Sat · Oct 24·5 PM – 7 PM·Chabot Space & Science Center · Oakland

Spooky Halloween hike through Oakland Redwood forest at Chabot Space & Science Center, followed by drinks, charcuterie, and stargazing on the observation deck, for ages 21 and up.

Sat · Oct 24·7101 Edgewater Drive, Oakland, CA 94621

Bulky Block Party (7101 Edgewater Drive, Oakland) — Residents with vehicles haul large loads to the site.

Sat · Oct 24·Guadalajara, 1001 Fruitvale Avenue, Oakland, CA 94601

Neighborhood clean‑up at Guadalajara on Fruitvale Avenue, with gloves and tools provided.

Sat · Oct 24·Woodminster Cascade, Joaquin Miller Park, 3300 Joaquin Miller Rd, Oakland, CA 94602

Volunteer projects improve trail safety and visitor amenities at Woodminster Cascade in Joaquin Miller Park.

Sat · Oct 24·Lake Merritt Sail Boat House, 568 Bellevue Ave, Oakland, CA 94610

Lake Merritt Institute Community Cleanup (Lake Merritt Sail Boat House) — Public volunteer cleanup; register on the website to attend.