Nature lovers, photographers and anyone interested in the natural wonders of the harbor really enjoy this trip to the Boston Harbor Islands on Saturday, January 19, beginning at 11 am. Cruise the outer Harbor Islands, Hingham Bay and Weir River Estuary. Park Rangers will lead this winter wildlife tour. The boat leaves from Long Wharf North, 66 Long Wharf in Boston, and details may be found at www.bostonharborislands.org.