The Cave is located in the area of Argostoli called Lassi. Saint Gerasimos led an ascetic life, when he came from Zakynthos to Kefalonia in 1555 and stayed here for 5 years. In 1560 he went to Omala, where his monastery is today.
In the northern side of the Cave, there is a natural hole of approximately 30x30cm, which provides natural lighting and a view to the sea. Today, the Cave has been embodied into a small chapel, which constitutes one of the buildings of a small male hermitage, branch of the Holy Monastery of St. Gerasimo’s Omalon.