Found in: Islands of Turkey
Heybeliada or Heybeli Ada is the second largest of the Princes' Islands in the Sea of Marmara, near Istanbul. It lies at . It is officially a neighborhood in the Adalar district of Istanbul, Turkey.
The large Naval Cadet School overlooks the jetty to the left as you get off the ferry. There are two interesting pieces of architecture on the grounds of the school. One is Kamariotissa, the only remaining Byzantine church on the island, and more importantly the last church to be built before the conquest of Constantinople. The other is the grave of the second English Ambassador to be sent to Constantinople by Elizabeth I of England, Edward Barton, who chose to live on Heybeli to escape the bustle of the city.
To the right of the jetty lies the town with its bars and cafes, a hotel that stays open all year round, and many lovely wooden houses.
At the top of the central mountain is an 11th century Greek Orthodox monastery, it housed the Halki seminary, the main Greek Orthodox seminary in Turkey and Theological Seminary of the Ecumenical Patriarchate of Constantinople. The monastery attracts tourists from all over Greece and Turkey.
To prevent the island from becoming polluted, the only motorized vehicles permitted on the island are service vehicles , the only forms of transport are by foot, horse and buggy and service transport. There is no airport; the only way of getting there is by boat.
The winter population of the island is around 3,000, but in the summer, the owners of the summer houses return and the population swells to approximately 10,000 people. The main attractions during the summer are small-scale open-air concerts laid on the local council, a swimming and fitness club next to the sea, and an annual Independence Day march which is commemorated by a resident naval band touring the island.
TCG Heybeliada, the lead ship of the twelve Milgem class corvettes (first eight) and frigates (last four) that are being built for the Turkish Navy, is named after the island.