Bioblitz: Hellyer County Park (San José)

Sun · Nov 1·Biblioteca Latinoamericana, Área de entrada principal || Front entrance area, San Jose

Community ofrenda altar at Biblioteca Latinoamericana front entrance, inviting visitors to view and add photos or mementos of deceased loved ones, for ages 5‑under and 10+.

Sun · Nov 1·Santa Teresa, San Jose

Puzzle swapping at Santa Teresa, San Jose, with 350‑piece and larger puzzles, limited to three to five trades per week, ages 10 and up.

Sun · Nov 1·Bay FC, San Jose

Bay FC hosts a Fan Appreciation Match against San Diego Wave, honoring supporters in their final regular‑season home game.

Sun · Nov 1·Plant Science Center · San Jose

Create colorful corn and bean mosaics while learning about the Three Sisters crops and their indigenous and agricultural history, at the Plant Science Center, ages 8–12.

Sat · Oct 31·3 PM·Emma Prusch Farm Regional Park, 647 S. King Rd. San Jose, California 95116

Free Halloween night at Emma Prusch Farm Regional Park features candy, games, food trucks, animals, haywagon rides, and more.

Sat · Oct 31·3 PM·Emma Prusch Farm Regional Park, 647 S. King Rd. San Jose, California 95116

Candy, games, food trucks, farm animals and hay wagon rides fill Emma Prusch Farm Regional Park for a free Halloween celebration, all ages.

Mon · Nov 2·8:30 AM – 12 PM·Alum Rock Park, San Jose

Volunteer to weed invasive plants and prune for fire mitigation in Alum Rock Park, with tools, instruction, and required water, snacks, sunscreen, and long sleeves.

Tue · Oct 27·8 AM – 12 PM·37.144862, -121.779067

Field Trip: Rancho Cañada del Oro OSP (Morgan Hill) — Guided exploration of the Rancho Cañada del Oro Open Space Preserve.

Tue · Oct 27·8:30 AM – 11 AM·37.3722387, -122.0822564

Field Trip at Cuesta Park in Mountain View.

Wed · Oct 28·5 PM – 7 PM·Santa Clara Valley Bird Alliance (SCVBA), 37.313072, -122.063695

Community Crafternoon at McClellan — crafting sessions held at the Santa Clara Valley Bird Alliance.

Thu · Oct 29·8 AM – 11 AM·37.403418, -121.953984

Field Trip: Ulistac in Fall at 37.403418, ‑121.953984.