E3 European long distance path

The E3 European long distance path, or just E3 path, is a long-distance footpath that is planned to run from the Portuguese coast to the Black Sea in Bulgaria. It is one of the network of European long-distance paths.
Route.
The completed sections of the route pass through Spain, France, Luxembourg, Belgium, Germany, the Czech Republic, Slovakia, a short stretch in Poland, Hungary, Romania, and Bulgaria.
It is planned to extend the route into Portugal to end at Cape St. Vincent.
Spain.
See Traildino
The Spanish portion of the E3 follows the Way of St. James, and specifically the French Way between Santiago de Compostela and France.
France.
See Traildino
Luxembourg.
See Traildino
Belgium.
See Traildino
Germany.
See Traildino
Czech Republic.
See Traildino
Slovakia.
See Traildino
In Slovakia, the path runs over the Malá Fatra and the Tatra Mountains.
Poland.
See Traildino
Hungary.
See Traildino
Bulgaria.
See Traildino
In Bulgaria, the path follows the ridge of the Balkan Mountains from Kom Peak on the Serbian border to Cape Emine on the Black Sea and is locally famous as the Kom–Emine long-distance trail.
Romania.
In Romania, the route includes the Carpatians Mountains.