NORTH BAY SCIENCE DISCOVERY DAY
Experience Wonder at Our 15th Event
For the 15th time, the San Francisco North Bay is coming together to ask big questions, test ideas, and celebrate science.
Meet scientists and engineers while exploring 150+ hands-on activities brought to life by 100+ organizations. Launch, build, touch, observe, experiment, and imagine your way through rockets and robots, beehives and sharks, medicine and engineering, animals, art, and more.
Sunday, May 2, 2027 | 10:00 a.m. to 4:00 p.m. | Sonoma County Fairgrounds, Santa Rosa
FREE ADMISSION | FREE PARKING | NO TICKETS REQUIRED
Rain or shine.
From a New Idea to a North Bay Tradition
North Bay Science Discovery Day began in 2011 with about 30 exhibitors and 4,000 visitors. Last year in 2026, 104 organizations and 174 volunteers welcomed more than 11,000 people.
The festival has grown, but its purpose remains the same: to give young people meaningful opportunities to ask questions, explore ideas, meet people who work in STEM, and experience the wonder of science.
Our 15th event celebrates the children and families, scientists and engineers, educators and exhibitors, volunteers and sponsors who built this North Bay tradition, as well as the discoveries still ahead.
Come curious. Experience wonder.
