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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. To gain access, please fill out the liability waiver and turn it in at the ARCAS front desk while membership services staff is on duty.

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

  • Face-coverings are optional

Staffed Hours

ARCAS is open 4am- 12am, for approved onsite SLAC employees. ARCAS is staffed 6am- 7pm, Monday through Friday. (*Depending on staff availability) 


Available to rent from the front desk, $20/quarter $60/year.

Facility Rental

For facility rental inquiries, please contact Derek Knight at

Staffing, Group Fitness and Equipment

For other inquiries, please contact Derek Knight at