Bosporus or Bosphorus strait of Istanbul is a natural waterway dividing Asian and European sides of Istanbul, and it's the only passage between the Black Sea and Sea of Marmara.
Bosphorus Strait has a significant place in the international maritime map as it is a busy waterway that witnesses the presence of many ships and oil tankers every day, in addition to the local fishing and passenger boats.
The increasing number of vessels passing through the Bosphorus strait makes is one of the worlds busiest maritime passages. It is estimated that the strait makes way for around 48.000 ships annually, which is reportedly three and four times denser than the traffic of the Suez Canal and the Panama Canal respectively.
Check this video to know more amazing Bosphorus Strait Facts.