People tend to check in during these times:
Club One at Embarcadero's 13,500 sq. ft. facility offers award-winning amenities, supportive staff, and motivating programs conveniently located at the Embarcadero Center.
Jim's spin class at 6am is awesome.
Get there before 6p and enjoy the place almost to yourself.
SF Weekly's Best of Winner 2012 - Reader's Poll - BEST GYM
Take a yoga class with Terry! Tuesdays at 4:30.