This report is older, yet I thought since I just registered in this forum I may share it anyway.
We went to Croatia the first week of April. I have a few teaser Pics here, for the full report you are welcome to visit my website.
English version: http://beautiful-herpetofauna.blogspot.de/p/croatia-2012.html
German version: http://beautiful-herpetofauna.blogspot.de/p/kroatien-2012.html