I have used this online service before and it is amazing how far booking a Greek ferry has come since I first visited Piraeus in 1985 (Drachma/confusion & paying by cash - a total nightmare!) and yet... something about the certainty of the smooth booking process is really reassuring when you're no longer a young person? Like everyone and their dog, Openferry now have an App that means that you don't have to stress about picking up your prebooked ticket at Piraeus Port either. Sometimes times can be very tight between arriving at ATH and transferring to Piraeus and catching the sailing. Thank you for providing this service.