Feral cats in Vathy, Ithaca, Greece. Ithaca, Ithaki or Ithaka is a Greek island located in the Ionian Sea to the west of continental Greece. Ithacas main island has an area of 96 square kilometres. It is the second-smallest of seven main Ionian Islands. Greece and the Greek islands are inundated with stray, abandoned and feral cats. The majority of them are born in the spring and survive through the kindness of people who feed them.