Ustica is a small Italian island in the Tyrrhenian Sea. It is about 5 kilometres (3 mi) across and is situated 52 kilometres (32 mi) north of Capo Gallo, Sicily. Roughly 1,300 people live in the comune (municipality) of the same name. There is a regular ferry service from the island to Palermo in Sicily.

The Aeolian Islands, sometimes referred to as the Lipari Islands or Lipari group after their largest island, are a volcanic archipelago in the Tyrrhenian Sea north of Sicily, said to be named after Aeolus, the mythical ruler of the winds. The islands' inhabitants are known as Aeolians. The islands had a permanent population of 14,224 at the 2011 census; the latest official estimate is 15,419 as of 1 January 2019. The Aeolian Islands are a popular tourist destination in the summer and attract up to 600,000 visitors annually.