Another springtime of baseball awaits Mill Valley kids at historic Boyle Park, and registration is now open at millvalleyll.org. In particular, the organization wants to reach kindergarten families who aren’t aware of the registration process. The “Rookie League” is a tee-ball/coach-pitch league for kindergarteners and guaranteed fun in the sun. One practice per week, and a game on Saturday – plus the magic of leading the traditional Mill Valley Little League parade! Play ball! MORE INFO.