Kathy and the rest of your arriving in Athens.. hang in there! Seems to be just the way things go there.. My first cruise out of Athens and staying at the GB pre-cruise was back in 1993. There were demonstrations going on down the street on the left side of the parliament building even then! A couple of years ago departing the Silver Whisper (Rome to Athens) we stayed at the King George Palace right next door to the GB. Uneventful that trip. Hit or miss, I guess, especially when staying on Syntagma Square.
Hoping everything works out and everyone has a great trip!