Embark on a boat trip to the nearby island of Hvar on your fourth day. Hvar is renowned for its vibrant nightlife, historical sites, and stunning landscapes. Explore the charming town of Hvar, visit the impressive Hvar Fortress, and wander through the narrow streets of the old town. Relax on the beautiful beaches of Hvar and indulge in some delicious local seafood. In the evening, experience the lively atmosphere of Hvar's bars and clubs.