Island access often relies on the extensive ferry network or private "rib" (rigid inflatable boat) charters. Short-term rentals are heavily regulated;... Read More in Italy and Spain, hosts must display a regional registry number. Expect a nightly "City Tax" (€2–€7). For remote islands, travelers should confirm if the rental provides a "provisioning service," as the nearest grocery store may be on a different island. Note that many Mediterranean island services shut down almost entirely during winter. Read Less