Thucydides , the ancient Greek historian, mentions the place as the "kophos limen" which means the silent harbour. And indeed Porto Koufo, with its rocky shores containing large caves, is one of the safest natural harbours in Greece. Greenery surrounds this seafront village - part of the Toroni municipality - whose residents and visitors revel in the sight of crystal-clear waters lapping onto a long sandy beach. Fishing boats loll about at the harbour as their owners shake out their nets, smiling and laughing no matter what the day's catch.