The must-see city; Istanbul
The Bosphorus is a narrow, navigable strait that connects the Black Sea (Pontus Euxinus) to the Marmara Sea (Propontis). It is approximately 31 km / 20 mi long and ranges in width between 1 and 2.5 km / 0.5 and 1.5 mi.
The narrowest point is 700 m / 2,300 ft between the Rumeli and Anadolu fortifications. Swift currents make it tough to navigate. The average depth is 50 meters (164 feet).
There are two currents in the Bosphorus, one on the surface from the Black Sea to the Marmara Sea and one below the surface in the opposite direction. The Black Sea is 24 cm / 9.5 in higher than the Marmara, which generates the surface current. The other current is caused by differences in salt rates between the two seas.
There are several attractions along both coastlines, including historic ruins, charming villages, and wooded regions. Near the southern end is the Golden Horn, Istanbul’s port and one of the world’s most convenient natural harbors.
Almost all trade between the Mediterranean and Black seas was channeled through the strait in ancient and medieval periods. It is still a significant international commercial route.
Every year, around 38,000 ships sail across the Bosphorus. The term Bosphorus derives from the story of the virgin Io and means “ford of the calf” in ancient Greek.
To discover the Istanbul City and witness history, take a look at our private guided Istanbul Tour!
If you wish to learn more about Ephesus before taking our Ephesus tours, follow this link.