You take one turn after another and many greek riders have learned cornering on this particular scenic road.
Recently (Autumn '16) some tight turns have extended to three lanes to facilitate the traffic but in the most part it remains a single lane per direction.
Marvellous green landscape along a river.
Hazards: Be prepared that you might see some motorcycle riders in the wrong lane all of a sudden. Some individuals tent to ride aggressively ignoring traffic laws. Also you have to check quite often your mirrors. Poor road lighting is making driving at night a lot more dangerous.
In late of May every year, hundreds of people take a walk along this 40km route for a popular religious pilgrimage, even late at night.