Greece has opened tourism on May 15 to:
those who have been vaccinated or
tested negative for COVID-19 on a rapid test, 24 hours before arriving or
tested negative for COVID-19 on a PCR test, 72 hours before arriving or
having a certificate of recovery from the SARS-CoV-2 or
having a certificate of a positive PCR molecular test result, confirming that the holder recovered from the SARS-CoV-2 virus infection, performed at least 2 months before arrival, and no later than 9 months before arrival.
You can find useful traveling information along with the (PLF) that you must fill in before entering in Greece, at the following link: https://travel.gov.gr/#/
All travellers must complete their Health Statement Form before their embarkation to their ship (ferry boat). You can either find the form at the port and fill it in before your ferry boat departure or you can do it online at the following link: https://sea.travel.gov.gr/#/
The border station of Makaza/Nymfaia is open for everyone.
Τhe vaccination for Covid-19 has already started to take place in Greece since 27 of December 2020 and the pace which citizens are being vaccinated is growing rapidly. You can see the daily process of vaccinations on the following link:
Greece is receiving vaccines developed by Pfizer, Moderna, AstraZeneca and Johnson & Johnson in a growing pace. Only in May and June 7.5 million vaccines will be delivered from which 1,3 million will be single-dose.
The accelerating vaccination process brings the plan closer to the bet of the immunity. Happily, after one year of sacrifices, we see the development of this pandemic coming close to an end.