Sea of MarmaraTürkiye
40°53′N 29°06′E
Princes' Islands
Adalar
The Princes' Islands (Turkish: Prens Adaları; the word "princes" is plural, because the name means "Islands of the Princes", Greek: Πριγκηπονήσια, Prigkēponḗsia), officially just Adalar (English: Islands); alternatively the Princes' Archipelago; is an archipelago of nine islands off the coast of Istanbul, Turkey, in the Sea of Marmara.

Chart
Overview
The Princes' Islands (Turkish: Prens Adaları; the word "princes" is plural, because the name means "Islands of the Princes", Greek: Πριγκηπονήσια, Prigkēponḗsia), officially just Adalar (English: Islands); alternatively the Princes' Archipelago; is an archipelago of nine islands off the coast of Istanbul, Turkey, in the Sea of Marmara. These constitute the municipality and district of Adalar within Istanbul Province. With a total land area of 11 km2 (4.2 sq mi), it is the fifth smallest district in Istanbul and, with a permanent population of 16,690 (2022), by far the least populous district in Istanbul. Adalar District is made up of the main four islands (Büyükada, Kınalıada, Burgazada, and Heybeliada) and the other smaller islands.
From Wikipedia, CC BY-SA 4.0
Census, cataloged
- Major islands5
- Minor islands1
- Islets3
- Rocks & skerries2
Major islands
Büyükada
- Area
- 5.4 km²
- High point
- 188 m
Büyükada (Greek: Πρίγκηπος or Πρίγκιπος, rendered Prinkipos or Prinkipo), meaning "Big Island" in Turkish, is the largest of the Princes' Islands in the Sea of Marmara, near Istanbul, with an area of about 2 square miles (5 square kilometres).
Heybeliada
- Area
- 2.5 km²
- High point
- 134 m
Heybeliada, or Heybeli Ada, (Greek: Χάλκη) is the second largest of the Princes' Islands (Adalar) in the Sea of Marmara, near Istanbul, Turkey. It is officially a neighbourhood in the municipality and district of Adalar, Istanbul, Turkey. Its population is 4,424 (2022).
Burgaz Adası
- Area
- 1.5 km²
- High point
- 157 m
Burgazada, or Burgaz Adası (Burgaz for short), is the third largest of the Princes' Islands in the Sea of Marmara, near Istanbul, Turkey. It is officially a neighbourhood in the municipality and district of Adalar, Istanbul Province, Turkey. Its population is 1,655 (2022).
Kınalıada
- Area
- 1.4 km²
- High point
- 111 m
Kınalıada (Turkish for: Henna Island; Greek: Πρώτη, romanized: Proti, lit. 'first', known classically in English as Prote) is the fourth largest inhabited island in the Princes' Islands in the Sea of Marmara; near Istanbul, Turkey.
Sedef Island
- Area
- 0.33 km²
- High point
- 51 m
Sedef Island, (Turkish: Sedef Adası, literally "Mother-of-Pearl Island"; Greek: Τερέβυνθος Terebinthos, and in ancient times also Androvitha or Andircuithos) is one of the nine islands consisting the Princes' Islands in the Sea of Marmara, near Istanbul, Turkey.
Minor islands
Yassıada
- Area
- 0.12 km²
- High point
- 44 m
Islets
- Sivriada57 m · 0.1 km²
- Kaşık Island14 m · 0.06 km²
- Tavşan Adası (Istanbul)21 m · 0.03 km²
Rocks & skerries
- Unnamed island<0.1 ha
- Unnamed island<0.1 ha
Figures
Comparative heights
- Büyükada: 188 m
- Burgaz Adası: 157 m
- Heybeliada: 134 m
- Kınalıada: 111 m
- Sivriada: 57 m
- Sedef: 51 m
- Yassıada: 44 m
- Tavşan Adası (Istanbul): 21 m
- Kaşık: 14 m
To the same scale
Islands by area
| Büyükada | 5.4 km² |
| Heybeliada | 2.5 km² |
| Burgaz Adası | 1.5 km² |
| Kınalıada | 1.4 km² |
| Sedef Island | 0.33 km² |
| Yassıada | 0.12 km² |
| Sivriada | 0.1 km² |
| Kaşık Island | 0.06 km² |
| Tavşan Adası (Istanbul) | 0.03 km² |
| Unnamed island | <0.1 ha |
| Unnamed island | <0.1 ha |
Photographs

Heybeliada seen from Burgazada (Princes' Islands) in Istanbul, Turkey

Kınalıada harbour (Princes' Islands) in Istanbul, Turkey

Island of Sedef from Büyükada, Prince Islands, Istanbul, Turkey.

Prince’s Islands

Seafront in Bostancı, Kadıköy district, Istanbul. In the background, the Princes' Islands.

Blue bosphorus

Fayton Yolu...

Fire brigade on Burgazada (Princes' Islands) in Istanbul, Turkey

Aerial view of the four main islands from left to right (Büyükada, the largest of the Princes' Islands in the Sea of Marmara, Heybeliada, Burgazada, and Heybeliada).

Острови Мармурового моря з літака

İstanbul

İstanbul
Sources
Facts
Photographs
- Istanbul (TR), Burgazada, Blick auf Heybeliada -- 2024 -- 0623. Anil Öztas / CC BY 4.0
- Istanbul (TR), Kınalıada, Hafen -- 2024 -- 0452. Anil Öztas / CC BY 4.0
- Island of Sedef from Büyükada. Maurice Flesier / CC BY-SA 4.0
- Adalar, İstanbul (20230127). Kadı Kadı / CC BY 2.0
- Bostancı Mars 2013. Arild Vågen / CC BY-SA 3.0
- Bluesea, Shotbyabdallah. Abdullahi Bala Mohammed / CC BY-SA 4.0
- Fayton Yolu... - panoramio. Sinan Şahin / CC BY 3.0
- Istanbul (TR), Burgazada, Feuerwehr -- 2024 -- 0574. Anil Öztas / CC BY 4.0
- Island, Shotbyabdallah. Abdullahi Bala Mohammed / CC BY-SA 4.0
- Islands of the Sea of Marmara from the air (Jul 2018) 1. Visem / CC BY-SA 4.0
- İstanbul - panoramio (37). Андрей Бобровский / CC BY 3.0
- İstanbul - panoramio (38). Андрей Бобровский / CC BY 3.0