At Royal Olympic Hotel. Athanasiou Diakou 28, Athens, Greece 117 43
You can find the program here (PROGRAM PM ATHENS 2017 PDF)
You can find information about the organized tours and excursions here (TOURS PM ATHENS 2017 PDF)
You can travel from the airport to Athens city center and the hotel by bus (Bus X95) and Metro.
All the questions regarding the logistics can be sent to [email protected]