On the basis of the textual analysis of the ODYSSEY by Homer, the author states that Scylla, Charybdis, and Planktos were in the Bosphorus. According to Homer, there was a huge whirlpool Charybdis in the Bosphorus took place in 629-571 b.c. The Black Sea level suddenly became 5-10 m lower (Phanagoreia regression) and the stream in the Bosphorus took the opposite direction against the existing. The hydrological experiment carried out in the shallow water helped to find out the location of Scylla, Charybdis and Planktos. 38 years later the Black Sea level rose, the stream turned back to direction existing today and Charybdis disappeared.
Key words: Scylla, Charybdis, Planktos, Odyssey, Bosphorus, Phanangoreia, Scheria, Aeetes