Looks like this weekend will be “wheelie” busy! Rock out at the Tricycle Music Fest West Finale concert in San Francisco. Bike around Pedalfest in Oakland, and celebrate the wheel with Red Tricycle! Take part in go-kart racing and other fall fun, at the McKinley Harvest Festival in Burlingame.

San Francisco

Outdoor Adventure Story Time
Celebrate the outdoors with your little nature lover at “Make A Difference Day.” Join Let’s Go Chipper author Stephanie Rach, as she reads stories that playfully teach kids about good character and respect for the environment. Kids can also create eco-educational crafts and play interactive games. Meet Chipper the Squirrel at the REI booth, where up to 50 Let’s Stroll Crissy Field books will be given away by as well. Sat., 10:00 am – 2:00 pm. San Francisco. Free. Ages 2 – 6. Event details.

Tricycle Music Fest West Finale
The San Francisco Public Library and Friends of the San Francisco Public Library present “the biggest little music series in San Francisco.” This free family rock show series concludes with an outdoor concert at the Mission Branch. It will feature Lucky Diaz and the Family Jam Band, The Time Outs and San Francisco Rock Project. Encore!  Sun.,11:30 am. San Francisco. Free. All ages. Event details.

East Bay

Pedalfest
Pedal fast to Pedalfest! This celebration of bicycles has something for bike enthusiasts of all ages! From handmade and vintage bikes, to pedal-powered spin art and bike decorating with Red Tricycle, there is something for everyone to see and do! There are also pedal-powered food vendors and amusement rides.  Make sure to ride your decorated bike in the Red Tricycle Bicycle Parade at 11:30 am! We brake for fun! Sat., 10:00 am – 5:00 pm. Oakland. Free. All ages. Event details.

Munchkin Masquerade Parade
Trick-or-treat at local businesses and vendors! Enjoy food, music, games, pony rides, story time and music class demonstrations. There will be a special Halloween Kidz Concert from Andy Z at 4:30 pm. Then the Munchkin Masquerade Parade will get under way at 5:00 pm!  Sun.,  3:00 pm – 6:00 pm. Walnut Creek. Free. All ages. Event details.

Marin

Halloween Music & Magic Show
See what Halloween tricks are up the magician’s sleeve at this fun show! And don’t be scared if you are called up on stage to help! Tickets are on sale at the Mill Valley Community & Aquatics/Fitness Centers. Fri., 4:00 pm & 6:30 pm. Mill Valley. $8/General. Age 3 & under, free. All ages. Event details.

Ghoulish & Giggly Stories & Crafts
Learn more about tricks, treats, ghouls and giggles, during a morning at the library! Listen to some spooky stories, make magical masks and have a ghoulishly good snack.  Sat., 10:00 am. Sausalito. Free. Ages 5 – 12. Event details.

Peninsula

McKinley Harvest Festival
Explore if you dare, all that is weird and spooky at the McKinley School Harvest Festival. Visit the Mansion of Horrors and Little Boo’s Playground. Take part in go-kart racing, pumpkin decorating, face painting and hair decorating.  Enjoy frightfully good food and even an Oktoberfest Root Beer Garden. Fri.,  6:00 pm – 10:00 pm. Sat., 4:30 pm – 9:30 pm.  Burlingame. $3/adult. $2/child. 13 & under in costume are free. All ages. Event details.

Justin Roberts Family Concert
Come see Grammy-nominated children’s singer and songwriter, Justin Roberts, and his band perform comic and soulful songs with creative, unique twists and turns that parents enjoy as much as children.  Justin delights audiences nationwide with his songs about baseball, bullies, dinosaurs and losing teeth.  Sun., 11:00 am & 2:00 pm. Palo Alto. See website for pricing. All ages. Event details.                                                             

— Rachel Teichman