Istra, it's nice most of the time, unless it's summer then the tourists start swarming like BEEEEEES BEEEEES NOT THE BEEEEEES... you get it xD
Was in Rijeka last summer, awesome, Dubrovnik, awesome, Split not so awesome, almost got beaten up :-(
Well that makes two of us with the Split thing... Not really friendly people there (in all honesty the other party was drunk and we just got there).