A few years ago I was doing some in depth reading on Byzantium. One of the authors mentioned that one of the reasons that the loss of Crete impeded Byzantine naval power projection was because of the currents in Aegean Sea made it easier to sail from Cyprus to Crete to the home ports in Greece, Anatola and Byzantium. I filed that away Awhile later I was rereading Jason and the Argonauts I plotted the place names mentioned in the story to a current chart, and I was rather surprised that the Author was pretty much on target.
Thanks LB.