Presidio Guided Walk: 250 Years on the Presidio

Sun · Oct 25·8:30 AM – 4:30 PM·San Francisco, CA (Farallon Islands)

Eight‑hour naturalist‑led whale watching expedition sails from San Francisco under the Golden Gate Bridge to the Farallon Islands, featuring an expert naturalist, $320 per person, ages 13+.

Sun · Oct 25·8:30 AM – 10 AM·SF Botanical Garden · San Francisco

Sophia Di Piazza leads a free guided walk in the San Francisco Botanical Garden, examining pollinators, beetles, true bugs and other insects; $5‑20 suggested donation, all ages.

Sun · Oct 25·3601 Lyon St, San Francisco

Cal Hacks 13.0 (3601 Lyon St, San Francisco) — 36‑hour hackathon offering workshops, industry mentors, corporate partners, food, swag, and prize pool of cash and devices.

Sun · Oct 25·5 AM·Event Location, San Francisco

Cycle Track open until 10:00 AM at Event Location, San Francisco.

Sat · Oct 24·11 AM·San Francisco Zoo & Gardens, Sloat Blvd at The Great Highway, San Francisco, CA 94132

Wolf Canyon at San Francisco Zoo offers insight into the zoo’s recent role in Mexican grey wolf conservation.

Sat · Oct 24·9:30 AM – 12:30 PM·Burning Man Decompression (SF) · San Francisco

Fly Ranch Nature Walk (Burning Man Decompression, San Francisco) — Immersive three‑hour walk through dynamic terrain where wild horses, jackrabbits, coyotes and other wildlife appear.

Sat · Oct 24·9 AM – 12 PM·Presidio Trust · San Francisco

Presidio Habitat Stewards at Presidio Trust in San Francisco.

Fri · Oct 23·9 AM – 12 PM·Presidio Trust · San Francisco

Volunteer with Presidio Forest Stewards at the Presidio Trust.

Fri · Oct 23·11:30 AM – 2:45 PM·Presidio Trust · San Francisco

Fort Point History Talk (Presidio Trust) — a presentation on the fort’s historic significance.

Fri · Oct 23·3 PM – 3:30 PM·Presidio Trust · San Francisco

Park Ranger Campfire Talks at Presidio Trust.

Sat · Oct 24·9 AM – 7 PM·Presidio Trust · San Francisco

ArtSpan SF Open Studios at Sports Basement takes place at Presidio Trust, San Francisco.