One of the Garden Club of the Back Bay’s favorite not for profit organizations, The Charles River Clean Up Boat, is holding a fund raiser Wednesday, October 4 from 6 – 8 pm. Boston Duck Tours will depart at the lagoon behind the Cambridgeside Galleria at 6 pm. Enjoy light hors d’oeuvre, beer and wine while motoring on the Charles River. $95 per ticket. For more information call 617-450-0068, or email info@BostonDuckTours.com.  If you wish to write a check, make it payable to Charles Riverboat Company and mail to Boston Duck Tours, 4 Copley Place #4155, Boston, MA 02116.  The event is sponsored by Charles River Riverboat Company, Boston Duck Tours, and The Museum of Science.