Friday, October 28

Scream on the Green Faire, 10am-5pm, Haunted House, Costume Contest, Music, Artisan Booths, Children's Play Area, Food & Beverages, Novato.

Scaregrove, 3-9pm, costume contests, haunted houses, hay rides, carnival rides, giant inflatables, food for sale and live entertainment, Stern Grove, San Francisco.

Halloween Magic Show at the Center, 4-5pm, ages 3+, Thrills and chills await us as Timothy James amazes with his special Halloween magic show of comedy, audience participation and amazing magic to create a spooktacular sho, Mill Valley Community Center.

Trunk or Treat at the Center, 4:30-6pm, free, Bring your children to the Community Center Parking Lot for a fun, safe and community Halloween event! Face painting, Food Truck, Treating, Games & more! Mill Valley Community Center.

Super Natural Halloween Party, 6:30-9pm, Grab your costume and have yourself a ghoulishly great time trick-or-treating your way through the Academy at night—among spooky skulls and spine-tingling specimens! California Academy of Science.

Halloween Haunted House, 6:30-8pm, $55, Cake Art Supplies, San Rafael.

Novato Horsemen Haunted House, 7-10 pm, $5, 600 Bugeia Lane in Novato.

Disney On Ice: Passport to Adventure, Join Mickey, Minnie, Donald, Goofy and Daisy on a journey to the magical worlds of Disney’s The Lion King, The Little Mermaid, Peter Pan and Disney’s Frozen, Oracle Arena, Oakland.

Saturday, October 29

The Jungle Book, 10am, 12:30pm, 3pm, Marin Theatre Company, Mill Valley.

Halloween Toddler Day, 10am-4pm, making costumes with recycled materials, face painting, taking a spooky tour of the Slide Ranch garden, investigating our worm compost, and cooking up some tasty treats in our outdoor kitchen, Slide Ranch, Muir Beach.

Story Craft, 10a-10:30am, ages 2-8, South Novato Library.

Bay Area Science Festival, 10am-4pm, learn the science behind animation, Schultz Museum, Santa Rosa.

Scream on the Green Faire, 10am-5pm, Haunted House, Costume Contest, Music, Artisan Booths, Children's Play Area, Food & Beverages, Novato.

Happy Creepy Halloween, 10am-5pm, Enjoy a scientifically spooky time at the Hall this Halloween including pumpkin catapults, creepy critters, pumpkin lifts, and more, Lawrence Hall of Science, Berkeley.

Boo at the Zoo 10am-3pm, Stroll the Zoo in costume and collect yummy treats. Ride the spooky boo train and join the dance party. Plus, get your face painted, make treats for the animals, and see how the animals at Oakland Zoo celebrate Halloween. Kids in costumes receive a free ride ticket. Oakland Zoo.

Scream on the Green Faire, 10am-5pm, "Chamber of Horrors" Haunted House, Costume Contest, Music, Artisan Booths, Children's Play Area, Food & Beverages and Safe Trick or Treat from 11a-2p, Downtown Novato. 

North Bay Science Discovery Day, 10am-4pm, Sonoma County Fairgrounds.

Hands-On Science at the Farmers Market, 10am-3pm, Downtown Berkeley Market, Center St @ MLK, Berkeley.

Dia De Los Muertos Celebration, 10:30a-1p, free, decorating sugar skulls, face painting, snacking on traditional pastries and creating our own memory box, Mill Valley Community Center. 

Bay Area Discovery Festival, 10:30a-4p, free, North Bay Discovery Day, Sonoma County Fairgrounds.

Halloween - Boos, Bones and Walking with the Dead, trick-or-treat through the new skeletal exhibit, enjoy the Spirited Halloween Fun plus a Hauntingly Tasty Taco Bar, Safari West, Santa Rosa.

Contra Costa Discovery Festival, 10:30a-4p, free, CSU East Bay, Concord.

STEAM Saturday, 11am, ages 3-6, stories, rhymes, songs, crafts, experiments, and sensory experiences, San Rafael Library.

Creative Family Fun, 11am-4pm, Officers Club, Presidio, San Francisco.

Halloween Bash, 11am-3pm, Trick or Treat So Others Can Eat, Pet Parade and Costume Contest at Woodlands Pet Food & Treats, Pumpkin decorating at Bank Of Marin, Live Music, Facepainting & Balloon twisting, Bon Air Center, Greenbrae.

Jeepers Jack-O-Lanterns, 11am-1pm, carving your own spooky Jack-O-Lantern for Halloween! A limited amount of pumpkins will be available (or you’re welcome to bring your own), McNears Beach Park, San Rafael.

Boo at the Zoo, 11am-4pm, a  "not-too-spooky" Halloween family festival where you can trick-or-treat around the Zoo and see the animals enjoy pumpkin treats, San Francisco Zoo.

Hawk Talk & Banding Demo, 12-2pm, Hawk Hill, Sausalito.

Pirates in the House! Aargh, 12pm & 3pm, Come dressed as your favorite Scallywag,eat, drink and be merry with ourpirate crew. Join our pirates for a feastto remember, a treasure hunt, and a great time! Falkirk Mansion, San Rafael.

San Raphael School Halloween Festival and Haunted House, 12-4pm, San Rafael.

Horse Hollow, 12am-5pm, live band, horse painting for children and families, a BBQ, and a show including a headless horseman, Presidio Riding Club, Marin Headlands-Fort Barry, Building 901-Bunker Road, Sausalito. EVENT CANCELLED

Not-So-Scary Halloween Party, 1-3pm, games, crafts, and treats, Marin City Library.

Pup Parade, 1pm, George, Marin Country Mart, Larkspur.

Pumpkins on Pikes, 2–10 pm enjoy great food, music, and pumpkin carving. Display your jack-o-lantern on a pike in the corn field. When the sun goes down the pumpkins are lit, Tara Firma Farms, Petaluma.

Woodland Pet Food Halloween DOGtoberfest & Costume Contest, 3-6, featuring interactive pet related activities and resources for pet lovers and their four-legged family friends. Festivities will include free pet photos, pet sketch artist, animal rescue organizations and adoptions, police K-9 unit and more! Plus, there will be a Howl’oween Pet Costume Contest as well as free Center-wide trick or treating for kids and their families, Strawberry Village, Mill Valley.

Day of the Dead/ Dia de los Muertos, 3:30 PM, Join in the colorful procession with Aztec Dancers and Day of the Dead pageantry! March from Gallery Route One to the Dance Palace for an evening of song, ceremony, food, and treats, Dance Palace, Pt Reyes. 

HallowScreen! 4pm, a special selection of Disney spooky cartoon shorts including The Skeleton Dance, Pluto's Judgment Day, The Mad Doctor, The Legend of Sleepy Hollow, and more! Walt Disney Museum, San Francisco.

Disney On Ice: Passport to Adventure, Join Mickey, Minnie, Donald, Goofy and Daisy on a journey to the magical worlds of Disney’s The Lion King, The Little Mermaid, Peter Pan and Disney’s Frozen, Oracle Arena, Oakland.

Howl-o-ween, they also have a Kid Zone, The Treasure Island Flea.

Dr. Egret's Haunted Center of Fright, Corte Madera Community Center.

Graveyard Stroll, 7pm, uncovers one of Marin’s most interesting, but little known cemeteries. All treats (and tricks) are free. Marin County Parks Lucas Valley Field Office in San Rafael.

Novato Horsemen Haunted House, 7-10 pm, $5, 600 Bugeia Lane in Novato.

Jack O’Lantern Jamboree, Children's Fairyland, Oakland.

Odysseo, the latest production of the internationally known entertainment company Cavalier featuring 75 magnificent horses and 45 riders, acrobats, dancers and musicians, San Jose.

Sunday, October 30, New Moon, Diwali

Mt. Tam Science Summit

Halloween Free Day, Exploratorium.

MommyCon, 9:30, dedicated to creating and nurturing a community of parents and parents-to-be in celebration of natural parenting, San Jose.

Mad Dash, 9:30am-1pm, Golden Gate Park, San Francisco.

The Jungle Book, 10am, 12:30pm, Marin Theatre Company, Mill Valley.

Creative Family Fun, 11am-4pm, Officers Club, Presidio, San Francisco.

Halloween Faire, 11am-12:30pm, Come in costume to celebrate All-Hallows-Eve with other wizards, witches, ferries, astronauts and cartoon characters. Play carnival games, bounce in the jump house, enjoy the candy & prize hunt and costume parade! Strawberry, Mill Valley.

Halloween Hoopla, 12-1:30pm, Unique Derique, Venezuelan Music Project, Pi Clowns, palm reader Madam Z, crafting with Trash Mash-Up and the Children’s Creativity Museum, games, photo booth and parade! Yerba Buena Gardens Festival, San Francisco.

Hawk Talk & Banding Demo, 12-2pm, Hawk Hill, Sausalito.

San Raphael School Halloween Festival and Haunted House, 12-4pm, San Rafael.

Dr. Egret's Haunted Center of Fright, Corte Madera Community Center.

Kids Costume Contest & Trick-or-Treating, 1pm, pumpkin decorating with the princess at The Poppy Store, Marin County Mart, Larkspur.

5th Annual Spooktacular Halloween Party & Trick or Treat Parade, 1-5pm, Japantown, San Francisco.

Hallowscreen!, 3pm, selection presents The Skeleton Dance, Pluto's Judgment Day, The Mad Doctor, The Legend of Sleepy Hollow, and more! Walt Disney Museum.

Disney On Ice: Passport to Adventure, Join Mickey, Minnie, Donald, Goofy and Daisy on a journey to the magical worlds of Disney’s The Lion King, The Little Mermaid, Peter Pan and Disney’s Frozen, Oracle Arena, Oakland.

Jack O’Lantern Jamboree, Children's Fairyland, Oakland.

Boo at the Zoo 10am-3pm, Stroll the Zoo in costume and collect yummy treats. Ride the spooky boo train and join the dance party. Plus, get your face painted, make treats for the animals, and see how the animals at Oakland Zoo celebrate Halloween. Kids in costumes receive a free ride ticket. Oakland Zoo.

Papermill Creek Halloween Carnival, 11am, ghoulish games, freaky fun, and gourmet food prepared by famous chefs going head to head for the title of Papermill Master Chef, Dance Palace, Point Reyes Station.

Boo at the Zoo, 11am-4pm, a  "not-too-spooky" Halloween family festival where you can trick-or-treat around the Zoo and see the animals enjoy pumpkin treats, San Francisco Zoo.

Kids Costume Contest & Trick-or-Treating, 1, pumpkin decorating with the princess at The Poppy Store, Marin County Mart, Larkspur.

Family Halloween at Fort Point, 1pm-6pm, costume parade, historic re-enactors, face painting, s'mores, and more, Fort Point, San Francisco.

HallowScreen! 3pm, a special selection of Disney spooky cartoon shorts including The Skeleton Dance, Pluto's Judgment Day, The Mad Doctor, The Legend of Sleepy Hollow, and more! Walt Disney Museum, San Francisco.

Celebrate Halloween, 3-5pm, costume party celebration with The JAMband, Park Chalet, San Francisco.

Howl-o-ween, they also have a Kid Zone, The Treasure Island Flea.

Odysseo, the latest production of the internationally known entertainment company Cavalier featuring 75 magnificent horses and 45 riders, acrobats, dancers and musicians, San Jose.

Monday, October 31, Halloween

Museum Monday for Little Ones, 10am-Noon, Schultz Museum.

Family Halloween Day, 10am-2pm, Randall Museum, San Francisco.

Hallowscreen!, 3pm, selection presents The Skeleton Dance, Pluto's Judgment Day, The Mad Doctor, The Legend of Sleepy Hollow, and more! Walt Disney Museum.

Dr. Egret's Haunted Center of Fright, Corte Madera Community Center.

Halloween Sausalito, 5–5:30pm, child friendly Haunted House, BBQ, trick-or-treat, dog costume contest and more, Sausalito City Hall.