I am going to Croatia in 10 days and am still tryig to work out what can and can't be done. I will be in Dubrovnik for 2 days then Havr for 5 and Split for 2 more, I don't see myself flying it in Dub and Split as I only have limited time but will probably fly it in Havr is the laws allow.

https://phantomcockpit.com/2016/12/10/drone-laws-in-croatia/
http://narodne-novine.nn.hr/clanci/sluzbeni/2015_05_49_974.html

This all states that it is "easy" as long as you are registered and have proof that you know how to fly...........

Has anyone flown in Croatia and know what the laws are really like? I don't want to take it all taht way and not fly it but also do not want to leave it and then regret it.

Any ideas?

Funnily enough, I'm on my way to Croatia now on hols and was seriously considering cancelling it due to the current drone laws, which make using a drone in the country very difficult, with strict fines if you don't get pre-approval to fly (minimum 8 days in advance, with all paperwork submitted in Croatian). In any event, the issue has gone away for me as my MP was stolen before even getting there.  
http://www.thedubrovniktimes.com/news/croatia/item/1066-new-drone-laws-come-into-force-in-croatia-25-000-kuna-fine-if-you-film-without-permission