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Arrillaga Recreation Center at SLAC

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Arrillaga Recreation Center at SLAC

Located at the SLAC National Accelerator Laboratory, this 17,600-square-foot facility contribute to the health and wellness of the laboratory’s employees and visiting scientists.

Fitness Classes at SLAC

Approved onsite SLAC employees can register for Group Fitness Classes at ARCAS.


2575 Sand Hill Road Building 55 (Eastern SLAC, on Pep Ring Road north of Building 901) Menlo Park, CA 94025


Front Desk: (650) 926-3313
Fitness Center: (650) 926-3314

COVID-19 Policies and Guidelines

  •  All personnel must fill out a liability waiver form prior to using the Recreation Center. 
  • No guests are allowed at this time.
  • A SLAC Badge is required to get to the Recreation Center, and must be swiped on the badge reader upon entering.
  • No one under the age of 18 is allowed in the facility.

Staffed Hours

ARCAS is open 24/7 for approved onsite SLAC employees, the schedule is our staffed hours.


Available to rent front the front desk, $10/quarter $30/year.

Facility Rental

For facility rental inquiries, please contact Alisha Garcia at