Halloween spirit is out in full force! Kids can think about prehistoric costume ideas with Buddy and KQED Dinosaur Train. And if they want to go the superhero route, they can check out some Super Heroes & Super Villains! But there is no better place to try out a costume then by wearing it to the Goblin Jamboree!

San Francisco

The Great Sleepy Bear Swap
Everyone can bring a gently-used stuffed animal to the zoo, to donate to charity, and then participate in fun-filled activities. These will include face painting and drawing contests. A keeper from the zoo will also educate kids about bears in the wild. Sat., 10:00 am – 1:00 pm. San Francisco. Free for the first 100 kids. All ages. Event details.

KQED Dinosaur Train
Kids can celebrate a day of discovery at the Academy with KQED and Buddy the T-Rex from Dinosaur Train! Families can bring their cameras, and join Buddy as he explores the museum and greets visitors. Sun., 11:00 am – 4:00 pm. San Francisco. $30 per adult. $20 per child. All ages. Event details.

East Bay

Super Heroes & Super Villains!
Kids can fly, swim or run faster than a speeding train to Playland for their celebration of the great American superhero tradition. Kids can come dressed as their favorite superhero (or villain) for a chance to win a super prize! Sat., 10:00 am – 5:00 pm. Sun., 10:00 am – 5:00 pm. Richmond. $15 per adult. $10 per child. All ages. Event details.

Sunday Streets Berkeley
The whole family can cycle, stroll, skate, dance and play in the car-free streets! There will be carnival games, hula hoop lessons and lots of music riding by too. Sun., 11:00 am – 4:00 pm. Berkeley. Free. All ages. Event details.

Marin

Goblin Jamboree
The Bay Area Discovery Museum will be transformed into a haunted wonderland, where anyone can enroll in the witches’ school, take a train or pony ride and visit the petting zoo. Costumes are encouraged for everyone! Sat., 10:00 am – 4:00 pm. Sun., 10:00 am – 4:00 pm. Sausalito. $15per non-member. $13 per member. 6 months & under, free. All ages. Event details.

Terra Linda/Sleepy Hollow Divide
Families will learn about the changes that take place between the hot and cold seasons. They will find out where the insects, spiders and lizards go, and when the salamanders will come out of hiding. They may see some birds who are arriving for winter. Sat., 10:00 am  –  1:00 pm. San Rafael. Free. All ages. Event details.

Peninsula

Woodside Day of the Horse
This event will celebrate the horse heritage of Woodside with a Camelot theme. Activities will include Wells Fargo Stagecoach rides, a puppet show, pony rides, a petting zoo and hearing a horse’s heartbeat. Sat., 10:00 am – 2:00 pm. Woodside. Free. All ages. Event details.

Ardenwood Farm Harvest Festival
Everyone gets to work on this working farm! Kids can harvest corn, ride a horse-drawn train, watch ice cream being made and sample old-fashioned treats. They can also watch a magic show, and join in a sing-along for some old-fashioned fun! Sat., 10:00 am – 5:00 pm. Sun., 10:00 am – 5:00 pm. Fremont. $8 per adult. $6 per senior. $5 per child. Under 4, free. All ages. Event details.

— Rachel Teichman

photo courtesy of the Bay Area Discovery Museum