The Princes' Islands are the group of
nine islands in the Sea of Marmara. In Byzantine times a number
of monasteries were built here, and the islands served both
as summer resorts and a place for exiles. The four larger
islands grouped close to each other are covered with summer
residences, villas and pine groves, and are famous for their
beaches and picnic areas. The only means of transport on the
islands are horse-drawn phaetons.