Kayak: Spooky Paddle!

Sat · Oct 31·2 PM·Tilden Nature Area, Berkeley

Crafts, coloring, creature displays and games await inside the Environmental Education Center, with a mystery natural exploration theme; drop‑in, no registration required.

Sat · Oct 31·1 PM – 3 PM·Ke Kai Ola, 73-731 Makako Bay Drive, Kailua-Kona, HI · Sausalito

Monk Seal Enrichment Building Day at Ke Kai Ola, 73‑731 Makako Bay Drive, Kailua‑Kona, HI.

Sat · Oct 31·1 PM – 2 PM·Big Basin Redwoods State Park, 21600 Big Basin Way, Boulder Creek, CA 95006

Guided 0.6‑mile flat walk through Big Basin’s old‑growth redwoods explores forest ecosystem, fire’s role, and post‑2020 fire recovery, for all ages.

Sat · Oct 31·1 PM·Sunol: Visitor Center

Spooky Sunol Open house (Sunol Visitor Center) — bat‑pollinated foods, games, scavenger hunt, animal ambassadors, nocturnal story time, Halloween costumes encouraged, all ages.

Sat · Oct 24·10 AM – 3 PM·Mark West Creek Regional Park and Preserve

Explore Sonoma County's newest parklands at Mark West Creek Regional Park before public opening.

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.

Thu · Oct 29·9 AM – 12 PM·Taylor Mountain Regional Park and Preserve

Volunteer for invasive plant removal at Taylor Mountain Regional Park and Preserve, clearing non‑native species to make space for native plants and wildlife.