This used to be an industrial area as it was the harbor-station for ships carrying coal in Greece. Today the place has decayed but back in the days it was a powerful and financially important part of the island.
Kea, or Tzia as the locals call it, is just an hour and a half from the port of Lavrio. It has a coastline with beautiful beaches, hills with shrubs and some tamarisk trees. The inland will surprise you as it is characterized by dense vegetation with forests of oak and several species of rare wild flowers.