We were a group of 15 people staying on the Sybaris. It was a really funny experience. Deniz and the rest of his crew are really nice and we were warmly welcomed on board. They are very flexible and had some helpful advices. The location is very central and the Sybaris is a beautiful old sailing ship with a lot of space. Each room (2-4 beds) has its own bathroom. Since the boat's main door isn't locked you can either get individual keys for the rooms or one key for one room and put your valuable belongings in there. We decided to do the latter which worked perfectly fine. Also, there is always somebody on the boat such that we never felt concerned about anything :).