Kuleli Kösk is an exclusive B&B in the island of Heybeliada , Istanbul-Turkey , housed in a 20th century historical mansion and managed by a Swedish-Turkish couple speaking English and French. This elegant Princes Islands bed and breakfast is the ideal place to spend a relaxing holiday , explore the car-free island offering a wide choice of walking , jogging and bike paths , or the other islands of Istanbul. In addition to elegant guestrooms , Kuleli Kösk B&B also offers free wireless Internet access , a Finnish sauna , a kitchen and a nice garden offering panoramic views on the surroundings and on the Marmara Sea.