The Katsikali sea cave is located on one of the steepest coasts of Asterousia, between the Koudoumas monastery and Tris Ekklisies and within the administrative district of the village of Paranymfi.
The impressive cave can only be reached from the sea. The entrance to the sea cave is spacious enough to fit a large boat. It is characterized by a hole in the roof and the deep dark blue colors.