Marmara Sea in the context of "Bosporus"

The Aegean Sea is an elongated embayment of the Mediterranean Sea between Europe and Asia. It is located between the Balkans and Anatolia, and covers an area of some 215,000 km (83,000 sq mi). In the north, the Aegean is connected to the Marmara Sea, which in turn connects to the Black Sea, by the straits of the Dardanelles and the Bosphorus, respectively. The Aegean Islands are located within the sea and some bound it on its southern periphery, including Crete and Rhodes. The sea reaches a maximum depth of 2,639 m (8,658 ft) to the west of Karpathos. The Thracian Sea and the Sea of Crete are main subdivisions of the Aegean Sea.

The Aegean Islands can be divided into several island groups, including the Dodecanese, the Cyclades, the Sporades, the Saronic islands and the North Aegean Islands, as well as Crete and its surrounding islands. The Dodecanese, located to the southeast, includes the islands of Rhodes, Kos, and Patmos; the islands of Delos and Naxos are within the Cyclades to the south of the sea. Lesbos is part of the North Aegean Islands. Euboea, the second-largest island in Greece, is located in the Aegean, despite being administered as part of Central Greece. Nine out of twelve of the Administrative regions of Greece border the sea, along with the Turkish provinces of Edirne, Çanakkale, Balıkesir, İzmir, Aydın and Muğla to the east of the sea. Various Turkish islands in the sea are Imbros, Tenedos, Cunda Island, and the Foça Islands.

İpsala (Ancient Greek: Κύψελα, romanized: Kýpsela; Greek: Ύψαλα, romanized: Ýpsala) is a town in Edirne Province in northwestern Turkey. It is the seat of İpsala District. Its population is 8,546 (2022). It is the location of one of the main border checkpoints between Greece and Turkey. The Greek town opposite İpsala is Kipoi.

The state road D.110 (European route E90) connects the border checkpoint İpsala with Tekirdağ at the coast of the Marmara Sea. The town consists of six quarters: Kapucu, Saraçilyas, Bayrambey, Köprü, Bozkurt and Fatih.

Biga Peninsula (Turkish: Biga Yarımadası) is a peninsula in Turkey, in the northwest part of Anatolia. It is also known by its ancient name Troad (Troas).

The peninsula is bounded by the Dardanelles Strait and the southwest coast of the Marmara Sea to the north, Aegean Sea to the west and the Edremit gulf to the South. The eastern border of the peninsula is Gönen creek close to Kapıdağ Peninsula. Cape Baba at 39°28′46″N 26°03′49″E / 39.47944°N 26.06361°E / 39.47944; 26.06361 is the westernmost point of Anatolia The main mountain of the peninsula is Kaz Mountain (Mount Ida of the antiquity). Among the seven rivers or creeks, Karamenderes River (Scamander of the antiquity) and Biga River (Granikos of the antiquity) are the longest. Karamenderes discharges to Dardanelles Strait and Biga River discharges to the Marmara Sea.

Yeşilköy (Turkish pronunciation: [jeˈʃilcœj]; meaning "Green Village"; prior to 1926, San Stefano or Santo Stefano Greek: Άγιος Στέφανος, romanized: Ágios Stéfanos, Turkish: Ayastefanos) is an affluent neighbourhood (Turkish: mahalle) in the municipality and district of Bakırköy, Istanbul Province, Turkey. Its population is 25,039 (2022). on the Marmara Sea about 11 kilometres (7 mi) west of Istanbul's historic city centre. Prior to the rapid increase of Istanbul's population in the 1970s, Yeşilköy was a secluded village and sea resort.

Erdek Gulf is a gulf of Marmara Sea, Turkey. It is administratively a part of Balıkesir Province.In fact, the gulf is named after Erdek, an ilçe (district) of the Balıkesir Province which is situated at the north coast of the gulf .The midpoint of the gulf is at about 40°22′N 27°40′E / 40.367°N 27.667°E / 40.367; 27.667. Kapıdağ Peninsula, Paşalimanı Island and Avşa Island are to the north, Belkıs Tombolo (connecting Kapıdağ Peninsula to the Anatolia mainland) is to the east, Karabiga ilçe is to the west and the Marmara coast of Anatolia is to the south. The maximum depth of the gulf is 47 metres (154 ft).

There are ferry services in the gulf. One service is to Barbaros in the Thracen side of Turkey, close to Tekirdağ. There are also ferry services to the nearby islands such as Marmara Island (Saraylar terminal), Avşa Island and the Paşalimanı Island.

Çatalca (Turkish pronunciation: [tʃaˈtaɫdʒa]) is a municipality and district of Istanbul Province, Turkey. Its area is 1142 km, making it the largest district in Istanbul Province by area. Its population is 77,468 (2022). It is in East Thrace, on the ridge between the Marmara and the Black Sea. Most people living in Çatalca are farmers or owners of vacation homes. Many families from Istanbul come to Çatalca for weekend hiking or picnics.

Tuzla is a municipality and district of Istanbul Province, Turkey. It has a population of 288,878 (2022) and a land area of 138 km . It is on the Asian side of the city next to the municipality of Pendik. Tuzla is on a headland on the coast of Marmara Sea, at the eastern limit of the city. The mayor is Eren Ali Bingöl (CHP).