- Protocol for Arrivals in Greece (COVID Info): https://travel.gov.gr/#/
- Athens International Airport Eleftherios Venizelos: https://aia.gr/traveler/
- This Is Athens! Official Visitors Guide: https://www.thisisathens.org/
- Public Transportation Athens: https://www.oasa.gr/en/
-Beat ->Taxi and ride-hailing mobile app for smartphones: https://thebeat.co/en/
- Find your ferry! https://www.ferryscanner.com/en/ferry
