The Princes' Islands are composed of nine islands off the Asian coast of Istanbul, in the Sea of Marmara. There are regular passenger ferries and fast passenger ferries (sea bus) to the four of the islands from Kabatas and from Bostanci districts. Motor vehicles are not permitted on the islands except the ones belonging to local municipality for public works, so people walk or rent a bicycle or horse-drawn carriage, even a donkey. These are nice little islands where local people have their summer homes or go there for small beaches and for picnicking, or just to wonder around at the weekends. These four islands are known as Adalar (Islands) in general in Turkish and their names are Buyukada, Heybeliada, Burgazada, and Kinaliada. There is also Sedefadasi which is not very popular as the other ones and very small settlement on it. There are no settlements on Hayirsizada, Sivriada and Yassiada, and Kasikada is a private island. The name of the islands come from the Byzantine period, when princes and empresses were exiled there. But during the Ottoman period, especially around 19th century with the use of steamboats, these islands became a popular resorts for Istanbul's rich people, building their wooden houses. Jewish, Greek and Armenian communities were a large part of the inhabitants of the islands. Today, the islands are popular tourist destinations for daily excursions especially during summer months. There are many monasteries and historic buildings on the islands, besides Victorian style old wooden mansions.