Kounopetra is a big rock on the seashore that has been operating for hundreds of years, moving slowly but rhythmically sliding one by one on the coast and one on the side of the sea every 20 minutes. Visitors used to put their sticks in the gap so they could see them crack with the stone movement. The movement of the stone was greatly reduced by earthquakes in 1953 due to the displacement of the soil, but it did not stop altogether. Today it can be better observed when the sea is rippling. The phenomenon of Kounopetra was very troublesome and not easy to interpret, but it ultimately attributed to the morphology of the rocks that are at the base of the rock, which in combination with the air and the sea cause the movement. It is also said that the move came due to a collision that happened between an English warship collision and the rock in the 19th century, and there is also a reference to the fact that English ships tried to unsuccessfully move the rock by tugging it and pulling it. In any case, this is another geological paradox out of many which you see in Kefalonia!

Kounopetra is also called the nearby beach that has red sand and is shallow like many other beaches in the area, so it is very suitable for children. Still, it has clay to cover your face and body for health and fun! Access by car is very easy, while the beach is not organized and does not have amenities.

The nearby village of Mantzavinata has been inhabited since antiquity. Its name derives from the combination of the Italian words mangiare (eat) and vino (wine), probably because the area produced mainly raisins and wine.