Also at the library don't forget that you can get cool passes to a variety of museums and venues.  These passes are donated by the Friends of the Southborough Library.  These passes can either reduce the costs or allow the pass holder in free.  They are: Isabella Stewart Gardner Museum in Boston. $5.00 will be charged for up to 4 visitors; Roger Williams Zoo in Providence Rhode Island 50% discount admission. Museum of Fine Arts Boston, 2 passes @ $5.00 admission fee each.  Worcester Art Museum pass admits 4 patrons free of charge; Tower Hill Botanic Garden in Boylston, each pass admits 4 persons; Museum of Science Boston, a discount pass for up to 4 people (not good for Omni Theater or Planetarium.  Other passes available include Discovery Museum in Acton, MA which admits up to 3 people @ 50% off admission; Ecotarium in Worcester admits 2 adults @ $4.00 and kids/seniors @ $3.00, children under 3 free; Children's Museum in Boston up to 4 @ $2.00 per person; Davis Farmland, Sterling, MA pass admits up to 6 people @ $8.95 per person (not valid weekends and holidays, pass valid at megamaze weekdays in August only); Massachusetts State Parks Pass and the New England Aquarium at Central Wharf in Boston for $7.00 per visitor (passes not valid during July and August on whale watches or Harbor cruises).  Passes are available on first come, first serve to holders of Southborough Library Cards or Southborough residents who have cards at other CWMARS libraries.  You may reserve passes in advance.  Call or visit the Southborough library for more information on the passes available.