We're sorry, online registration is not allowed for this activity. Drop In Fitness Classes, Drop In Child Care, Drop In Swim, and Drop In Teen/Tweens are FREE with your YMCA Facility Membership. Capacity may be limited, and is available first come, first served. For other programs, please contact the Y during regular business hours for further information. Free time in the gym. Members are welcome on a first-come, first-serve basis. Age All Ages Location Downtown Y - Basketball Gym at Downtown Seattle YMCA