Reviews -Ferries

I booked a trip from Kos to Nisyros by the ferry boat Diagoras. There was a two hour delay which was regrettable (8:30 am instead of 6:30). No information about the delay was given to the passengers till we found out by ourselves, as we were told that the ferry boat we were about to board on due time was the wrong one. The port authority should provide information to passengers on the harbours by means of panels for example for due times of departures and arrivals.