Akvaryum Bay This bay, which is located right next to the Zonguldaklılar Site, is almost as still as a lake, since its mouth is almost completely closed. Due to this property, it was being used as a fish farm until recently. The Akvaryum Bay doesn’t have any social facilities. It is possible to swim, but it has a shallow sea bottom. Seaside is partly of sand, but the seabed is completely sanded.