The Pertosa Caves (Italian: Grotte di Pertosa) are a remarkable karst cave system located in the municipality of Pertosa, in the province of Salerno, Campania. They are some remarkable show caves of Italy an the most ones, with Castelcivita, in their province.
The caves, also named Grotte dell'Angelo as many italian voids in honour of St. Michael, are extended also in the territories of Auletta and Polla.
They are situated by the eastern side of Alburni mountains, in the locality of Muraglione, 3 km in south of Pertosa and close to its railway station. Due to the presence of Tanagro river the caves are rich of water and, after the main entrance, there is an underground lake.
The caves were the set of some scenes of 1998 Italian horror film "The Phantom of the Opera" , directed by Dario Argento.
