My family is visiting Italy and Croatia in July and we would like to base ourselves on a Dalmatian island for four days/nights of relaxing. Our kids are 10 and 13 and we enjoy staying active (hiking, swimming, snorkeling, paddleboarding, etc) and some sightseeing, local culture and good food. We will have been traveling for 15 days when we arrive so I expect we will need a break! I would prefer to avoid much exposure to the crazy party scene with my kids (although a glimpse is ok and fun). We are planning to fly into Split and out of Dubrovnik, visiting the island(s) in between. I have been looking at Hvar (Stari Grad or Jelsa) and Korcula but I would love advice from those that have been there!
I liked Korcula. Historical town of Korcula is gorgeous, fantastic views. Nearby Lumbarda has even sandy beach. Rarity in Dalmatia.
I liked Hvar. There are opportunities for sailing excursions and other water activities. If you were to stay in Stari Grad instead of Hvar Town, you'd either need a car or be willing to pay a taxi to get back and forth to Hvar Town. Hvar Town has clubs, but I don't think of it as having a wild and crazy party scene. Of course, we were there in the early part of the shoulder season -- I don't know how it is during July.