It is a small island, about 9 km across, situated 52 km north of Palermo, in the Tyrrhenian Sea. It has vulcanic origin.
Excavations began in 1989 at Faraglioni unearthed what was a large prehistoric village dating from the 14th to the 13th century BC. The foundations of some 300 stone-built houses were discovered, and the defensive walls of the settlement are among the strongest fortifications of any period known in Italy. It is believed that these early settlers came over from the Aeolian Islands.
The Romans renamed the island Ustica, Latin for burnt, for its black rocks. The island is also known locally as the "black pearl".
Ustica has a stunning sea and an amazing landscape.
The island is characterised by reduced sources of water, and the vegetation is consequently scarce. The coast has numerous rocks and grottoes.
Ustica is home of the honeybee Apis mellifera sicula.
Ustica is particularly known for scuba diving, with a number of diving schools established on the island. Recreational divers are attracted by the relatively deep dives, which are a feature of the island's volcanic geology.