The waterfront mansion that is used in the shootings of Golden Boy is called Sakıp Sabancı Yalısı. The best way to get there is to take a yacht from Bebek, Arnavutköy or Kuruçeşme. 1 hour tour is sufficient to get to the point but it's highly recommended to book a 2 hours tour to enjoy the rest of the Bosphorus as well. Simply book one of the below yachts and tell your captain that you want to go to Beylerbeyi and see "Sakıp Sabancı Yalısı" The captain will take you there and stop for you for a quick photo session.