In case you're wondering why we hang around the Port Police - As non Eu we have to have a cruising log that gets stamped fin and out of each island that has Port Police. this can be quite quick and efficient or some sort of walk through treacle. You then surrender your log when you leave theoretically so they know where you've been but since you don't get stamped at each little bay or island they don't really have a clue. Interesting bit of bureaucracy. For checking in for out of Greece as a country you should use an agent if you want a brain left after a few hours.