SLAC National Accelerator Laboratory offers free public tours. Tours last approximately 90 minutes and usually include a visit to the lab’s 2-mile-long linear accelerator, now driving the world’s brightest X-ray source.

Tours are offered twice a month, by registration only.

All public tours meet in the SLAC Orientation Theater (Room 1010), Building 53, at 1:15 pm. Closed-toed shoes are required.

Tours are open to all visitors 12 years of age and above. Children 12-17 years of age must be accompanied by an adult; tickets are required for both the minor and the escorting adult.

We currently do not take registration for group tours, including school groups. We apologize for not being able to host your group at this time; please check back here periodically for updates.

Tour Guidelines

Before you sign up for the tour, please read the general guidelines, safety-related information and directions for SLAC visitors. 

View Tour Guidelines »

Registration

Registration opens on the last Friday of every month at 9 a.m. Tours are popular and spaces fill up quickly; we recommend registering as early as possible.

Register for a public tour of SLAC »

Tour FAQs

What will I see on the tour? Who are the guides? What should I bring with me?

View Tour FAQs »