While most of the country starts feeling a chill in the air, we’re out west building sand castles. This weekend you can soak up the Bay Area’s best with Blue Angels, an evening sing-along, an Italian circus and the spirit of the Ohlone. Thank you, October!

sand castle buildingphoto: Dark Dwarf via flickr

San Francisco

Fleet Week Celebration
Join Pier 39 as they pay homage to our nation’s armed forces with Fleet Week. Meet and greet the Blue Angels pilots, check out a parade of ships, and enjoy live entertainment along the pier! Fri., Sat. & Sun., 11 a.m.-6 p.m. Pier 39. Free. All ages. Event details.

Parent & Toddler Woodworking at The Butterfly Joint
Punch in on the time card clock, dawn an apron, gloves and safety glasses, pull the steam whistle, drill some holes, tap with the mallet, sand some wood and more! There is no take-home project but this is a great way for you and your child to start developing the fine motor skills they will need to create with their hands. Drop-in, but you can book a spot in advance. Fri., 10-11 a.m. Mission. $15. 18-36 mos. Event details.

History for Half Pints: Building California
At this once-monthly History for Half-Pints with the California Historical Society, kids learn about history while getting crafty and having a ton of fun. This Saturday, enter the Cardboard Challenge, build your own, bring it in, or create it in our space! Guests for the day include The Mexican Museum, who will be on hand making cardboard piñatas and Dave Martinez Ventures, who will bring: Samsung VR, Oculus, Satellites, Drones and Google Glass. And did we mention this is free with RSVP? Sat., 11:30 a.m.-2 p.m. SOMA. Free with RSVP. All ages. Event details.

Leap’s Annual Sandcastle Contest
Bring your buckets, your scoops, and your camera to Ocean Beach for this amazing sandcastle competition. Architects, builders, and corporations team up with SF elementary schools to create totally awesome sand sculptures. Kids can participate in the building at the Community Sandcastle area. Food trucks, surf, and sand. This year’s theme is Sand Cinema and any funds raised support Leap’s art programs. Sat., 10:30 a.m.-4:30 p.m. Ocean Beach. Free. All ages. Event details.

East Bay

Sing-Along Cinema: Hairspray
Head to Jack London Square waterfront for a free screening of this popular musical, complete with a theatrical troupe that will sing and dance with each performance. Dress up like your favorite character and get ready to sing along! Pre-event festivities include costume contests, games, prizes and more. The movie starts around sunset, and festivities begin about an hour before (exact times vary slightly, typically 6-9 p.m.). Fri. Jack London Square. Free. All ages Event details.

Astronomy Festival at Chabot
Bring your little stars to the Astronomical Society of the Pacific’s Universe 2015, a full-day family astronomy festival featuring public lectures, planetarium shows, hands-on activities for including preK and early learners as well as older kids, and you can even enter a raffle to win a telescope. Far out! Sat., 10 a.m.-5 p.m. Oakland. Festival is included in museum admission: Included with admission to museum: $18/adults; $15/child 13-18; $14/child 3-12; children 2 and under are free. All ages. Event details.

500 Years of Latino History at Peralta Hacienda
Experience California’s untold history through fun hands-on rancho activities, a film on the Latino history of California and a cool new outdoor art installation. Sat., 2:30-5:30 p.m. Oakland. Free. All ages. Event details.

14th Annual Livermore Artwalk
The streets of downtown Livermore will be filled with the work of over 150 artists including a “Tree Sweater Forest” display where downtown trees will be wrapped in fiber art and a Steamroller Print Fest where you can engage in printmaking. Sat., 11 a.m.-5 p.m. Livermore. Free. All ages. Event details

Peninsula

Zoppe Family Circus
It’s the opening weekend for this traditional Italian circus featuring a Unicycle Built for Two, the flying trapeze act known as the Daring Jones Duo, Nino the clown, acrobatics, and canine capers all under the big top of a 500 seat tent. Join this seventh generation Zoppé family for a matinée or evening performance that will please the lil’ ringmaster in your crowd. Fri., 4 & 7 p.m., Sat., noon, 3 & 7 p.m. and Sun., noon, 3 & 6 p.m. Redwood City. $17-$26/adults; $12-$16/child; children 2 and under are free. All ages. Event details.

Very First Concert: Meet the Woodwinds
Learn all about what makes the flute, oboe, clarinet, bassoon, and French horn so special. Meet the musicians and learn about the reeds, keys, knobs, and tubes that make all the magic happen. Designed for the youngest listeners, these 20-minute presentations teach musical concepts, offer hands-on activities an encourage dance and movement. Sat., 10:30 a.m., 11:15 a.m. or noon. San Mateo. Free. All ages. Event details.

Woodside Day of the Horse
Join the nearly 2,000 people who flock to Woodside on the second Saturday of October to enjoy a glimpse of rural America in modern times. Live music, food, a petting zoo, Wells Fargo Stagecoach rides and much more. There is also a Progressive Trail Ride (11 a.m.-2 p.m.) which requires a $40 minimum donation for participants. Register here for the trail ride. The fair is free. Sat., 10 a.m.-2:30 p.m. Woodside. Free. All ages. Event details.

South Bay

Outrageous Outgrowns Fall Sale
The Outrageous Outgrowns Fall Sale is one of the biggest consignment sales in the Bay Area. Offering a huge number of items for kids of all ages, including maternity and nursing clothing, this is a great way to get geared up for the fall and winter months. Plus you’ll find toys, games, puzzles, movies, strollers, cribs and more. All items are gently used and inspected before being offered for sale. Fri., Sat. & Sun., 9 a.m.-5 p.m. San Jose. Free. All ages. Event details.

Ohlone Festival
Step into the daily lives of the original Bay Area inhabitants, the Ohlone, who lived here for thousands of years. Check out a replica Ohlone village along with demos and activities including archery, tool crafting and face painting. Activities recommended for ages 5-12 but all ages welcome. Sat., 10 a.m.-3 p.m. Cupertino. $7. All ages. Event details.

Pumpkins in the Park
Learn about Guadalupe River Park and the Park Conservancy and celebrate the fall season. Pick your perfect jack-o’-lantern from a Giant Pumpkin Patch, participate in a costume swap at the Children’s Discovery Museum, enter a costume parade, play carnival games, eat great food, enjoy a kid’s concert and so much more. Sat., 10 a.m.-4 p.m. San Jose. Free. All ages. Event details.

Marin County

Lagunitas Fall Music Festival
Beso, the high-energy local Gypsy-Rock band headlines the annual Lagunitas Fall Music Festival which supports the public school district’s Montessori program. Check out performances including youth bands, tons of kid’s activities, yummy food and arts and crafts. Sat., noon-4 p.m. San Geronimo. $10/adults; children 18 and under are free. All ages. Event details

History Sail on the Freda B
Hop on board classic schooner Freda B  for a special local history tour. Enjoy views of the iconic buildings like the Palace of Fine Arts and Coit Tower, stunning shots of the Marin Headlands, Alcatraz, and Angel Island. Learn all about the people, the water, and the land that make our bay what it is today. And keep an eye out for harbor porpoise and more! Includes pastries and coffee; hot chocolate, mimosas, beer, wine, and juice available for purchase. Sun., 8:45 a.m. Sausalito. $65. All ages. Event details.

Headlands Family Hike
Join Red Tricycle community mom on a family hike through the Lagoon Loop of the Marin Headlands/Rodeo Beach. Enjoy a guided hike complete with binoculars, magnifying glasses and scavenger hunt, a craft at Rodeo Beach and (as promised) cookies. Bring your own water and lunch, and a towel for the beach. Great for kids of all ages, but for babes in arms use a carrier or a backpack as this is not suited for strollers. Please see event details for registration and meeting spot. Sun., 10:30 a.m.-noon. $10/person; children 2 and under are free. Sausalito. All ages. Event details.

Marin Waldorf School’s Annual Children’s Faire
Play magical games like Sleeping Giant, Mermaid’s Lagoon and Knight’s Quest, and enjoy  story time, crafting galore, wandering minstrels, face painting fairies and lots of vendors with food and unique goods. Sun., 10 a.m.-4 p.m. San Rafael. Free. All ages. Event details.

What’s on your family calendar this October weekend? Let us know in the comments below and visit us on Instagram and Facebook to show us how you #rockedtheweekend. 

—Amber Guetebier