The chasm-cave “Aggalaki” is located in an area (Poulata) where there is a large system of caves that have a linear distance of few hundred meters.
It has been found that most of them form in their inside underground lakes with fresh or brackish water.
In the case of”Chiridoni” and “Sotiras”, it was found after cave-diving that they are connected through an 190m canal.
In 1963, geologists added a purple dye into the waters of the sinkholes of Argostoli, and after 14 days these substances were detected to flow into the region of Sami, namely in the sites Karavomilos, Fridi, Agia Efimia.
The waters that enter in the sinkholes in Argostoli, pass underneath the lagoon of “Koutavou” and end up in the other side of the island, cover a linear distance of 14km. The water at the exit points is brackish, because during their route they are combined with groundwater coming from Ainos. It is a truly remarkable natural geological phenomenon, unique in Greece.
The chasm-cave “Aggalaki” is situated at an altitude of 50 meters and is surrounded by olive trees. A study was conducted for the chasm-cave “Aggalaki” in order to be valorized and for this reason a low stone wall with railings has been built around its entrance.
However, the study was never implemented and thus the chasm-cave “Aggalaki “remained in its peace and tranquility, waiting the cavers to go down and admire its beautiful decor, lakes with the blue clear water and feel once more admiration and love for the beauties of Kefalonia.
The chasm-cave “Chiridoni” is about 2 km. from the village, 1 km. from “Aggelaki”, and very close to the road connecting Poulata with Karavomulos. It is part of the cave-complex in the wider region, which according to speleologists consisted a single huge cave in the distant past.
“Chiridoni” has a depth of about 40 meters, length 100 meters and a downhill entrance which leads to an impressive arcade with transparent brackish water and beautiful stalactites and stalagmites. Also, after a cave-diving found to be connected with the adjacent cave of “Sotiras” through an underground canal of 190m.
In this canal exist rare aquatic plants. It is estimated that a unique in the world species of insect also lives there, which has managed to adapt to life without light. This is the cave-grasshopper that has no wings and her eyes are atrophied, since it lives in a dark environment.