What we want are just flights to Dubrovnik then spend some time in Dubrovnik before moving on to the islands.
Accommodation ideas for both places are welcome. I think I could post an new question for this though.
We have upto 3 weeks in Croatia so have a budget to stick to. Any expensive places to avoid?
August is most expensive month to visit Croatia or Dubrovnik, try to book self catering apartment somewhere not on seashore or with views, it is cheaper than sea views or old town Dubrovnik.