Open Gym - All Ages - Seattle, WA 2025

Description Drop In Fitness Classes, Drop In Child Care, Drop In Swim, and Drop In Teen/Tweens activities are FREE with your YMCA Facility Membership . Registration is not required; capacity may be limited and is available first come, first served. For community events, membership and registration are not required. 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 Matt Griffin Y - Gym at Matt Griffin YMCA