Ustica Pastizza Cave is located in the southern part of the island, in the middle of zone B of the ​​Ustica Island Protected Marine Area. It is not known exactly where its name derives from, many probably from the pyramid-shaped rock that precedes the entrance to the cave called “Pastizzu” (mess). Camillone, born Camillo Padovani, of Ustica, who was the first diver of the island but also the first explorer of the hidden Pastizza. The entrance to the cave is slightly elliptical, about 40 meters wide at the base and 10 meters high, with an average depth of a couple of meters. Up to the bottom of the cavern run about 40 meters with a beach 10 meters from the entrance formed by large collapsed boulders, the ceiling height is about 16 meters. The cave has a further development not known by all, it has three entrances: one on the left side through a crack at the surface of the water, and two divers. The development is 83 meters long, 30 to 50 meters wide, scattered with piles of collapsed boulders alternating with sea water. It is an environment of colossal dimensions with a very articulated morphology and considerable differences in height. The cave also has a submerged development with two underwater entrances: one from the cavern, the other in the open sea, and is the destination of many expert divers who go into the secret depths of the cave.