The Pontine Islands are an archipelago in the Tyrrhenian Sea off the west coast of Italy. The islands were collectively named after the largest island in the group, Ponza. The other islands in the archipelago are Palmarola, Zannone, and Gavi to the northwest, Ventotene and Santo Stefano to the southeast. These two groups are separed by 22 nautical miles. From Sabaudia-Cape Circeo peninsula to Zannone the distance is 12 nautical miles, while Ventotene faces Gaeta (21 miles). The minimum distance between Santo Stefano and the isle of Ischia is 22 nautical miles.
During the reign of Rome's Caesar Augustus, residential expansion on the islands was encouraged and people spread from Ponza to Ventotene. Rome used the two islands as a retreat and a place to exile politically troubling citizens. Some two thousands years later the islands were used for the same reason by the Fascist regime.
The Pontine were abandoned during the Middle Ages due to constant raids by Saracens and pirates. During the 18th century, the Kingdom of Naples re-colonized the islands, that later became part of the Kingdom of Italy.
Ponza and Ventotene are populated, in the smaller islands are nobody. Ventotene and Santo Stefano are land and sea conservation areas supervised by the Italian State.
Currently, tiny vineyards, wild herbs and flowers, and secluded beaches and grottos make them a popular tourist destination.