Ustica Natural Swimming Pool, immediately below the Cavazzi Point Lighthouse in the Spalmatore area, in zone B of the Ustica Island Protected Marine Area, there is a transparent body of water enclosed by a cliff and communicating with the sea via an underwater tunnel. It is easy to see the mullets and large salpe grazing among the boulders. It is also possible to swim in the Cavazzi Point Cove. It can be reached via a somewhat challenging path between the cliffs. Ideal for couples and teenagers.