Istanbul is one of the most amazingly situated cities in the world. The Bosphorus Strait is the body of water connecting the Black Sea and the Marmara Sea, and it's been the center of the city for literally millennia. As such, it's no surprise that a tour of the Bosphorus is essentially a tour of Istanbul. One of the easiest ways to take a Bosphorus tour is simply to take the commuter ferries that cross the Bosphorus using your 'Istanbul Card,' which is valid for all forms of public transportation in the city. The primary ferry stops are Eminönü and Beşiktaş on the European side, and Üsküdar and Kadıköy on the Asian side, though there are ferry stops that leave less frequently all over the city. Long Bosphorus Tours The final stop on these tours is often Anadolu kavağı, a little fishing village on the Asian side of the city which now caters to people looking to get away from the hustle and bustle and sit at a nice café or restaurant and look out over the stunning views of the Bosphorus and Black Sea.