From the Richmond Bridge:
Exit at University Avenue. Stay on University until Sacramento then turn right. Turn right on Derby Street. (Longfellow Middle School is on the left side of Sacramento at Derby Street).
From the Bay Bridge:
Exit at Ashby Avenue. Stay on Ashby until Sacramento then make a left. Derby is one block past the first traffic light on Sacramento. Turn left onto Derby.
The exercise studio is behind the purple house on the left side of the street. Go down the driveway and through the gate.