Why would you go on a CRUISE ship to the Antarctic? Presumably everyone on that ship at least knew it'd be somewhat treacherous down past Cape Horn? At least everyone was safe this time, not like three years ago (http://bit.ly/fg9fBd). Speaking of past incidents, though, in the last four years, three cruise ships have ...been smacked and crippled by exceedingly powerful waves ('07, '08, '10) during the same week (give or take a few days).
On polar tourism trends: http://dotearth.blogs.nyti
And that 2008 incident: http://dotearth.blogs.nyti