Sireta Cave in Ustica
Grotta Sireta in Ustica, where "Sireta" stands for "Secret", is located along a stretch of coast which, initially low and jagged, rears up taking the shape of a semicircle. The Sireta cave is part of a large cave which today is divided into two parts, the upper part is called Grotta Sireta, the lower part is called the Green Grotto. hemicycle in the emerged part and various collapsed blocks that emerge on the surface. The reflections of light present inside the shell are very fascinating.
