From Athens International Airport ‘EL.VENIZELOS’ to Drepano is 160 km.
There is a regular bus service from airport to the central bus station of Athens (KIFISOS). From KIFISOS BUS STATION, there are regular buses (every hour) to Nafplio. From Nafplio you can get a bus to Drepano or a taxi (it’s only 10 minutes drive).
If you rent a car from Athens airport estimate a travel time of about 2 hrs to come to the apartment.