The MetroWest YMCA has a guest pass policy.  2 guest passes per person per lifetime.  This pass can not be used if two guest passes have already been used.   Free day pass applies to Adult, Family and Senior membership categories only. Not valid for youth and teens. 

The daily fee to the MetroWest YMCA is $15 for families, $12 for adults, $5 for seniors, youth and teens.