Sonchis described the route to the ancient Island of Atlantis:

“... there was an island situated in front of the straits which are by you called the Pillars of Heracles; … this sea which is within the Straits of Heracles is only a harbour, having a narrow entrance….”

The harbor is the Sea of Marmara, which lies between the Aegean Sea and the Black Sea. Narrow straits, called the Dardanelles, must be navigated to enter the Sea of Marmara. Then you sail through the Bosporus which narrows to a passageway of less than one half mile wide before you sail into the great sea (Black Sea) and thence to a wonderful island called Atlantis! These straits match exactly the description of the Pillars of Heracles in the Sonchis transcript.