That sucks 😞 I know those Santorini reservations need to be scheduled way in advance. This cruise was actually attempt #3 or #4, I forget now. In one of the previous ones, it was out of Athens with a visit to Santorini too I think.
For us, they handed us a letter as we walked into the port. The really upset people were the ones that came from Puerto Rico to Miami .. just to cruise right back to Puerto Rico.