One of the islands of the Little Princes. It is an area of ​​0.05 km 2, located far from the islands group, characterized by its hierarchical shape. It is a prominent part of a mountain peak. It is 90 meters above sea level. On the southern side of the island there is a well of fresh water, as well as a small marina used by boat owners. The closest islands to the flat island of Yassı Ada, about 1.7 km away.

The acute island's history

This island, whose ancient name was Oksiya Ada and also known as Hayırsız Ada, is located in the middle of an area rich in marine resources. The island, which contains a lantern at the top of the mountain, was used by its sisters from the Princes' Islands as exile, as well as by the Byzantine clergy as a quarantine for many years. Al-Jazira Monastery, which dates back to the 10th century, is one of the most important monuments that have survived to this day. This monastery, which has witnessed the lives and suffering of many religious clergymen and prisoners, and because of the lack of inhabitants, suffers the same isolation and isolation.

In 1911, bulk dogs collected from the alleys of Istanbul were transported to this island. Which is considered the last exile in the history of the island, and some people consider the great earthquake in Istanbul, which followed the transfer of several years to leave the dogs on the island without eating, which led to eat each other as a divine punishment for that incident.