My girlfriend and I will be travelling to Croatia/Slovenia in early June for 11 days and have a rough itinerary planned so far. Our tickets are booked flying into Dubrovnik and out of Zagreb so those cannot be changed. We currently have a tentative rental car booked from 6/10 until we fly out. Our current itinerary looks like this:
6/8: Dubrovnik -> Arrive 8am. Explore city and relax.
6/9: Dubrovnik -> Explore city, maybe go to a beach or Lokrum Island?
6/10: Dubrovnik -> Day trip to Kotor, Montenegro
6/11: Mostar -> Sleep in Mostar
6/12: Split -> Arrive around noon. Explore city.
6/13: Split -> Day trip to an island (Hvar, Vis, Brac) or an island tour.
6/14: Split
6/15: Plitvice Lakes -> Early AM leave for Plitvice. 4-5 hours in the park. Sleep in Ljubljana
6/16: Ljubljana -> Explore city
6/17: Ljubljana - Lake Bled area day trip.
6/18: Zagreb
6/19: Fly home 9AM
Is this too rushed? I love the idea of seeing both Mostar and Kotor but struggle with whether an island stay for a night or two would be better. Can this be accomplished as a day trip from Split? Obviously, 6/15 will be a long day but we want to fit Plitvice Lakes into the itinerary.
Any suggestions or recommendations would be appreciated.