Energy Transition Symposium

6th HAEE Energy Transition Symposium

28 September - 1 October 2021 Theoxenia Palace Hotel, Kifissia

The City of Athens

Athens is the capital and the largest city of Greece. It is one of the world's oldest cities, with its recorded history spanning over 3,400 years, a center for the arts and philosophy and the birthplace of democracy.

Athens is considered one of Europe's safest capitals and has a user-friendly transportation network. Thanks to its rich morphology Athens has plenty of places where you can admire breathtaking and panoramic views of the city. Surrounded by a lining of stunning seas and mountains, Athens offers a plethora of adventurous opportunities just waiting to be discovered. Located at the crossroads of three continents, the capital of Greece has often been the hub of many cultures. Characterized by a culture and people that are warm and hospitable, every visitor feels welcome. Athens is an ideal congress destination, combining state-of-the-art infrastructure, excellent conference facilities and easy access from all over the world with world-class cultural attractions, modern amenities, diverse entertainment and natural beauty.


Athens is connected to the International Airport, 35 km from the city center, via public transport that includes metro, suburban rail and various bus services.

Metro line 3 (blue line) runs from Athens airport to Syntagma Square in the city center.

Estimated cost: 10€

Suburban Rail 
Athens International Airport is connected via suburban rail with Athens Central Railway Station (Larissis Station), Port of Pireaus and Kiato.

Estimated cost: 8-14€ (The cost depends on the pick-up station) 

Bus Express Airport
Bus connections with the Athens City Center on a 24-hour basis, X95 (to Athens downtown “Syntagma”).

Estimated cost: 6€ 

The taxi stand extends from Exit 4 to Exit 1 at the Arrivals Level of the Airport.

Estimated cost: 40€



The Athens Metro has 3 lines. It connects important landmarks of the Greek capital, such as the Acropolis, Athens Airport, Port of Piraeus, Central Railway Station and Olympic Stadium, in addition to connecting downtown Athens with the suburbs.

Line 1 (green line): Kifisia – Piraeus
Line 2 (red line): Anthoupoli – Eliniko
Line 3 (blue line): Airport – Douk. Plakentias – Agia Marina
For more information about timetables visit  


The Athens Tram connects the city center with the southern seaside.

There are 3 lines:
Line 1: “Syntagma – SEF” connecting Athens city center to the Peace & Friendship Stadium
Line 2: ”Syntagma – Voula” connecting Athens city center to the southern suburb of Voula 
Line 3: “Voula – SEF” running along the coastal zone 

For more information about timetables visit  

Buses and trolleys

City buses and electrical trolley-buses serve Athens and its suburbs. Operating hours vary according to line/ day/ season, but generally they operate between 5:00 a.m. – midnight. There are also five 24-hour lines, 4 airport lines (see above section), and 8 Express lines.

You can find routes, maps and real-time bus movement information on 

Suburban Railway - Proastiakos

The Suburban Railway is part of the national railway network of Greece. Its main route is Athens Airport – Kiato.

More information on 


Taxis (yellow in Athens) can be a convenient -although more expensive- means of transportation. 

For your convenience Taxibeat application is available.

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