Camping Festival. April 25. Enjoy interpretive hikes, tours, family activities, games, art, live music, outdoor classes and demonstrations, educational booths and vendors and an evening campfire. Boulder Creek. FREE.
South Bay Teen Idol. April 25. Watch 10 of the South Bay's best teen vocalists compete for the title of South Bay Teen Idol, in this American Idol-style competition. $15-20. Los Gatos.
Children of the Dragon. April 25. Music, dance, food and art highlight this exciting, colorful and culturally rich event featuring members of the local Vietnamese community at the Children’s Discovery Museum. $9-10, under 1 and members FREE. San Jose.
Ohlone in the Marshes. April 26. Learn about the Native Americans that lived in the Bay Area as well as some of the tools and games the Ohlone might have used. Play Ohlone games and take home your own customized staves. Alviso. FREE.
Earth Day: Day of the Child. April 26. Enjoy a day of arts and crafts, live entertainment, relay races, interactive booths, guided nature tours and more. Watsonville. FREE.
San Francisco, Marin & Peninsula
Crafty Friday: Earth Day. April 24. Celebrate Earth Day at the library with an art project using recycled or green materials. FREE. San Francisco.
Belmont Earth Day Celebration. April 25. The city of Belmont is hosting its fourth Earth Day celebration featuring recycling stations, information booths, activities and prizes. FREE. Belmont.
Rockin’ Ropes Obstacle Course. April 25. The San Francisco Zoo invites kids ages 4-14 to enjoy the elevated ropes obstacle course "Rockin’ Ropes Adventure" in the Pachyderm Building. Young visitors can zip, swing, jump, step, and slide their way through all 30 feet of fun. San Francisco. Activity: $3-7, zoo admission: $30-35.
Pacific Coast Dream Machines Show. April 26. See more than 2,000 magnificent driving, flying and working machines from the 20th and 21st centuries. Half Moon Bay. $15-25, 10 and under FREE.
Rainbow Fest. April 26. Pacifica Co-op Nursery School is hosting a fundraiser featuring food, live music, art and activities for everyone. Popular kids’ music band Charity & the JAMband will be performing. $10 adults, $5 kids. Pacifica.
Upcycle. April 25. Workstations will feature hands-on activities that creatively re-use materials otherwise headed for the landfill. Learn how to screen-print patches, create colorful mosaics, make quilts from t-shirts, weave rag rugs and fold-form metal objects. 1-4pm. FREE. Richmond.
World of Dance Bay Area. April 25. Watch top dance troupes, with a focus on street dancing and today’s new-aged choreography, as the World of Dance tour comes to the Bay Area. 2-10pm. $40. Solano County Fairgrounds, 900 Fairgrounds Drive, Vallejo. 707-551-2000. worldofdance.com.
PiE Robotics Competition. April 25-26. Experience a robot showdown as more than 20 teams of high school students compete with robots they designed and built at this annual competition run by UC Berkeley's Pioneers in Engineering. 10am-5pm. $12 adults, $10 ages 3-18, members and children under 3 FREE. Berkeley.
Hairspray. April 25-May 17. It’s plus-sized teen Tracy Turnblad’s time to shine when she suddenly becomes a dance superstar on the popular Corny Collins Show. Show times vary; check website. $38 adults, $23 ages 17 and younger. Berkeley.
Lafayette’s Earth Day Festival. April 26. Enjoy good food, live music, kids’ crafts and activities, and educational displays. Visit with green vendors and nonprofits, and explore this year's theme of transportation at a festival to promote a more sustainable lifestyle. 11am-3pm. FREE. Lafayette.