In the antiquity it was called Kremydonisi (Greek: Κρεμμυδονήσι and Κρομμυδονήσι).

[1] It is part of Ayvalık ilçe (district) of Balıkesir Province at 39°20′43″N 26°41′31″E / 39.34528°N 26.69194°E / 39.34528; 26.69194.

It has two road connections; one to mainland Anatolia (towards south east) and the other to Cunda Island (towards west).

The connection to mainland was constructed in 1817 (i.e., Ottoman era) by filing.

It is connected with Cunda Island by the Ayvalık Strait Bridge.