from what Ive heard and read about Croatia it sounds like an awesome place for the most part. the bad part is there isn't much weed to be found there. mostly hash. but you might find the case to be different. if your into drinking then your in luck. both above and underage drinking are pretty much the norm as for partying. also there is a bunch of nude beaches which must be pretty fun.
I know it's very old thread but if somebody ever needs this information : 1g is 13.62 EUR by today's rate .. of pretty good weed... they sell it as "skunk" but it's really any good weed, not specific strain...sensimilia of course... you also have regular quality weed which is less expensive but usually not good, so just ask for "skunk".. there isn't much hash around, it's pretty rare but if you find it somehow it's usually good... there are no street dealers so meet with some smokers to hook you up... just find somebody like me to help you .