It's a sea cave under the historical peninsula where there is the Alanya Castle. Sea transportation is done by boats. Around the peninsula, according to the tour programmes, it's the first cave. Little boats can enter the cave. You can also swim to enter the cave. There was a rumour that there was a hidden path reaching the castle and the pirates of ancient time took out their booty from this path to the upward part of the castle. The image of the rocks under the sea makes the cave more mysterious.