Thassos Island - Island Thassos Greece - Journey/with car via ex-Jugoslavia

Before you start your trip please inform yourself about the situation in Ex-Jugoslawia at the office of foreign affairs.
You should also inform you about the conditions of entry for the following countries:

Slovenia
Croatia
Serbia / Montenegro
Macedonia

Note, that in Austria there is some payments for using the roads/highways (vignette) and for using the tunnels.

Startingpoint for the description for the route to Kavala is Munich.

highway A8 direction Salzburg
go on direction Graz
go on via Gleinalmtunnel
entry to Sloveia
go on direction Maribor
go on road E59
entry to Croatia
go on road E59 direction Zagreb
go on road E59 direction Rijeka / Slavonski Brod
go on road E70 direction Zupanja
entry to Serbia / Montenegro
go on road E70 direction Beograd (= Belgrad)
go on road E75 via Nis direction Leskovac
entry to Macedonia
go on road E75/highway number 2 direction Skopje
go on road highway number 2 direction Veles / Thessaloniki
go on road E75/ highway number 1 direction Negotino / Thessaloniki
entry to Greece
go on road E75 via Polikastro direction Thessaloniki
at Thessaloniki go on road E90 direction Seres / Kavala
exit Kavala
follow the traffic-signs to the ferry boat

Good additional information you can find here