The sea georoute of the island of Kefalonia starts from the port of Argostoli. We head north around the gulf of Argostoli, passing by the KatavothresGeosite (one of the most important geological phenomena of the island, in which the karst system of the ArgostoliKatavothresGeosite is connected underground with the brackish springs of Sami (Karavomylos)) and the Lighthouse of AgioiTheodoroi. Then we move across the gulf, to the city of Lixouri, and continue the georoute along the coast of Paliki Peninsula: we pass the Xi Geosite(a beach of crimson sand and raw gray clay that one can use for natural spa) and the KounopetraGeosite(a residual form of coastal erosion causing the constant movement of a boulder of the local coastal formation (sandstones)). We continue moving north sailing around the Paliki peninsula, passing by the GerogomposGeosite (coastal karst geoforms that create a special landscape), the KipouriaGeosite and the Platia AmmosGeosite(where we can observe coastal erosion forms as well as geotectonic forms, such as faults, some of which are traces left from the 2014 earthquake) and the Agia Eleni Geosite(a coastal geoform of special beauty). Then, having reached the northern part of the Paliki peninsula, we pass by the bay of Atheras, where the Sakatos-Kokotos preserved compound is located (it consists of a traditional house, an olive mill and a small church built during the last century). Then, we head east to the FteriGeositewhere residual erosion geomorphs are found,like a rock arch which got destroyed by the earthquake of 2014. Next is the Zola area with the Rock Garden Geosite, where karstic geomorphs in limestone rocks are present and characteristic of the area. After this short stop, we continue to the Geositeof Myrtos, where we can admire the damage zone of the area of Charakas, which is connected with the main road by a bridge (after the earthquake of 2014). We complete the sea georoute with the AssosGeosite which represents the unique outcrop of the Lower Cretaceous formation of the Pre-Apulian zone on the island of Kefalonia.