The Bósforo is a narrow strait located in northwestern Turkey, connecting the Black Sea to the Sea of Marmara. It serves as a natural boundary between the continents of Europe and Asia. The strait is approximately 30 kilometers long and varies in width, with its narrowest point being around 700 meters. The Bósforo is significant for maritime trade, as it is one of the busiest waterways in the world. It is also home to several important cities, including Istanbul, which straddles both sides of the strait. The area is known for its stunning views and historical landmarks, making it a popular destination for tourists.