I'm looking for recommendations - or your opinions - on visiting an island for three nights while making our way from Split to Dubrovnik in the of June. We are a family of four with two teenage daughters (who will like some beach time). We like the outdoors, hiking and exploring. We will have a car but can opt to return it in Split if that is what will make the most sense as we will fly from Dubrovnik to Zagreb. We will be traveling light - so while it's nice to be able to just throw everything in a car, we will likely have three small suitcases or backpacks and two smaller daypacks.
I've looked at Korcula as an option but I am not sure about being there without a car as it is large and the buses sound so-so. Hvar seems too party-like, Brac seems not as good of a stopping point in terms of getting to Dubrovnik.
Thanks in advance!