melissani caves in kefalonia island greece

beach boat cave cavern cefalinia cefallonia cefalonia cephalonia destination famous geology greece greek hole ionian ionio island kefallonia kefalonia lake landmark landscape limnetic limnic mediterranean melisani melissani mellisani natural nature nymfaio nymphaio nymphaion nymphs pagan pan panas pond pool rock sacred sami sea seacave speleology temple touristic travel underground water