The Sulphurous Cave is called Cala Fetente and can be reached after passing Punta Mammone in the south-eastern area of Capo Palinuro. The hydrothermal phenomenon that marks the character of all the sea cavities of Cape Palinuro finds in the Sulphurous Cave its most marked expression. The bottom of the cave, its walls and internal cavities give off sulphurous vapors of great intensity, which characterize the whole area, hence the name of Cala Fetente.