Planning Summer Trips to Italy and Turkey/Greece

I am currently planning two trips to Europe in the upcoming summers of 2012 and 2013. For the summer of 2012 we will be touring Italy and for the summer of 2013 we will be touring Turkey and Greece by way of a cruise ship.

I have taken students abroad before, in 2008 to Italy and in 2009 to Italy and Greece. On both trips I had a mix of middle school and high school students.

I recently attended a conference in Croatia to learn more about traveling abroad with students and what kinds of services are available. I also found Croatia to be a very beautiful country that could offer immense educational value to my students as well. Maybe a trip back there is warranted in the future?