Athens International Airport (ATH)
The following locations are excellent neighborhoods, near the beach and the wedding locations. Subway access is nearby the Glyfada area! 1. Glyfada, Athens, Greece (Example Hotels: Palmyra Beach Hotel, Congo Palace, Sea View Cityscape Hotel, Palace Hotel, Came Luxury Suites) 2. Vouliagmeni, Athens, Greece (Example Hotels: Athenian Riviera Hotel, Aelia Luxury Apartments) Note #1: For hotels in these areas you can also check Booking.com. Note #2: There are also plenty of cool AirBnBs in these areas. Note #3: There are also many places to stay in downtown Athens, although it is further away from the wedding locations.
Car rentals are available at the airport. There are no Ubers in Greece, but there are taxis. Additionally, the subway is very safe and can get you anywhere you want to go.