In Palagruza Island, a hotel must provide a certain number of high-end amenities to be rated 5 stars. These can include on-site gyms, gourmet restaurants, saunas and spas, luxury bathroom products, premium bedding and more. What also sets 5-star hotels apart is their guest-centric standard of service. You can expect things like concierge services, nightly turn-down services and in-room massage. Some may even offer extra touches like a welcome gift.