The Bosphorus Strait is a natural strait that connects the Black Sea with the Sea of Marmara in northwestern Turkey.
The waterway is 31 kilometres (19 miles) long and varies in width from 730-3300 meters.
Among the international maritime map, it occupies an important place as a busy waterway where many ships and oil tankers pass daily.
One of the world's busiest maritime passages, the Bosphorus strait is home to an increasing number of vessels.
It is one of the most difficult waterways in the world to navigate due to the narrow width of some channels.
It is one of the most important sea routes in the world for the transportation of oil from the Caspian region and Russia to regions such as Asia, Western Europe, and Southern Europe.