Calling all POPsters - There is a wonderful review of a cruise very similar to ours (on Explorer II) on CC at the following site, I hope:
http://boards.cruisecritic.com/showthread.php?t=280451 Some of the images the poster describes (such as the time when a child on their cruise lay down and was promptly joined by a baby elephant seal which laid its flipper over her) are experiences of a lifetime.
All in all, it raises our enthusiasm level about this Antarctica cruise (which was already high) by another magnitude.
If the link I posted doesn't work (I'm not very adept at such connections), just go to CC, Ports of Call, South America - the thread is Review: Antarctica/Falklands/S Georgia - Dec 2005.
Thinking good thoughts of fragrant pigeon poop and elephant seals, Cheers, Fred