The Bosphorus Strait is north of the Black Sea, the Marmara Sea and the Mediterranean Sea, separating Turkey into Asia and Europe. Istanbul is located on the two sides of the central and southern section of the Strait. It was built in 1973 to cross the Bosphorus Highway Bridge, which is 1560 meters long. There is a beautiful myth in the Bosphorus. It is said that Zeus, the first of the gods, had a lover named Io, who turned Io into a cow to hide it from his wife Hera. Hera later learned about it. She became a cow fly to harass the cow Io, to avoid the cow fly, Io crossed a water wall. In ancient Greek, "bous" means "cow", "phoros" means "water wall", the myth of the water wall is the Bosphorus. We were very lucky to enjoy the sunset on the cruise ship in the Bosphorus Strait, leaving a perfect termination for our three-week trip.