thanks
yes we have booked the celebrity century, the itinery is as follows
Barcelona, Spain, Cannes, France, Florence, Italy, Rome (Civitavecchia), Italy, Sicily (Messina), Italy, Mykonos, Greece, Ephesus (Kusadasi), Turkey, Athens (Piraeus), Greece, Naples (Salerno), Italy, Barcelona, Spain
we are unable to fly out the day before but have a nice early flight so will be in barcelona by diner time

as we are new to this sort of thing, what are the prices of things like drinks, how does the tips etc work and how do you pay at the end? sorry lots of questions

many thanks for your help