Balkans beach recommendations
 

My girlfriend and I are doing 1 week in Bulgaria (sofia + petrich) this summer (around july 4th week) and we want to parlay that into a beach town somewhere in the balkans for about a week. So far, between the both of us we've done:
a) Black sea in Bulgaria
b) Croatia (split + dubrovnik)
c) Greek islands (santorini, milos, mykonos)

We're not totally opposed to other spots in southern europe, or even the ones above -- but I had some trouble coming up with things off the top of my head. What other recommendations do people have? I appreciate the responses!

I have not done Bulgaria but would expect it to be good. Croatia is beautiful but it will be very very busy. Greek islands are always wonderful. You could add Montenegro to your list which is also very good. The up and coming destination is Albania. I have not been to the Albanian coast but it does get good reviews. If you can stretch it to 2 weeks you could do all of them!