Polyrrhenia was an important hilltop town, whose territory occupied the whole western extremity of Crete. According to Strabo, it was founded by Achaeans and Lacedaemonians. It was 30 stades from the sea and 60 stades from Phalasarna, and it had a temple of Dictynna. It continued to flourish in the Roman period, when the center shifted to its erstwhile port, Kissamos, and in this urbanistic configuration lasted into Byzantine times. A small town now occupies the site, where rock-cut tombs, ruins and an acropolis remain. A Roman aqueduct built in the age of Hadrian improved water supplies. Systematic archaeological excavations have been conducted at the site since 1986.