I’ve been there three times - once on a ship (the only on in) with about 650 pax, once on a larger ship, with two others in port ,with a total of about 4,000, and once having come by ferry for two nights, but coping with about 7500 cruise pax one day - so we just sheltered in place with our retsina until they pulled out.
The place is hardly recognizable on heavy cruise days. If true justice existed the cruise line managers would serve time for fraud for trucking in so many pigeons.