Mother the Earth for the day and let the world know you appreciate its beautiful colors. Earth Day at Gamble Garden has a scavenger hunt and juice and cookies. The Earth Day Open House in the Marin Headlands has hikes and tours and face painting and anything else you can think of. Come early to the Berkeley Bay Festival and help clean up the shoreline. And SF Refresh treats every day like Earth Day with their line up of Earth-friendly and you-friendly activities and workshops. If you’re looking for an egg hunt this weekend, check here or see the calendar.

San Francisco

 

Run for Recess SF
Get moving at Playworks’s Run For Recess and find out why recess is so important to your kids and their school day. This 5K certified course will challenge runners and walkers alike, and a 1-Mile Fun Run/Walk gives people of all ages and ability a chance to participate. Sun., 8:30 am to 12:00 pm. $15-$60. All ages. Event Details.

DogFest
Bring your pup for DogFest, McKinley Elementary’s FUN-draising extravaganza. Enter your dog in contests for best trick, best costume, best ears, best tail, best look-a-like duo, mutt what?, and many other categories. Join the fun with a kid carnival, parade, face painting, contests, bouncy houses, and more. Sat., 11:00 am. $10/dog registration. All ages. Event Details.

 

Marin

Children’s Fair
Celebrate Week of the Young Child by bringing your young child to the Children’s Fair. Bring the whole family out for over 20 activity booths and live entertainment. Sat., 11:00 am to 2:00 pm. Free. All ages. Event Details.

East Bay

 

Cal Day
Visit UC Berkeley (pictured) for a day of free museums, interactive exhibits, live performances, music, gymnasts, and food. Bring your future “oskis” over for a day of higher learning. Sat., 9:00 am to 4:00 pm. Free. All ages. Event Details.

Habitot’s Birthday
Happy birthday, dear Habitot. Celebrate Habitot’s 13th Birthday with clowns, bubbles, puppets, songs, and more. Visitors can decorate a giant “cake” in the Art Studio, and enjoy real birthday cake and punch at 3:00 pm. Bring a present of new or gently used toys, or children’s or parenting books. Or, bring some “birthday money” to continue Habitot’s work. Sat., 9:30 am to 4:00 pm. $9/person. All ages. Event Details.

Peninsula

Stanford Spring Splash
For all your middle- and high-schoolers, check out the schedule for Stanford’s Spring Splash. Some awesome courses await your little budding minds, and it’s a great way for your teen to try out the college life (minus the dorms). Sat. and Sun., see website for times. Free. 11-18. Event Details.

Earth Day on the Bay
Celebrate Earth Day at the Marine Science Institute and take a ride on their 90-foot ship, visit with marine animals, make arts and crafts like recycled jewelry, listen to live music, and get your education on with EarthCapades Environmental Vaudeville. Sat., 8:00 am to 5:00 pm. $20/person for boat trip. All ages. Event Details.

—Nicole Cooksey-Voytenko