Here's a picture of the Cracker Bay taken in Boston 2011-09-03 12:08.
http://photos2.marinetraffic.com/ais...4664&size=full
You can track her by entering her MMSI 319715000 into Goggle.
I'm not sure that everyone will have access to the site. I send AIS ship positions to the site when I'm up North so I may be on an access list.
Most large pleasure yachts carry AIS transmitters and broadcast their position while underway.