Arrival by car: Coming from Hermagor or Kötschach-Mauthen, you drive via the B111 (Gailtal Road) towards Tröpolach/Nassfeld junction – from there you continue via the B90 (Nassfeld Pass Road) to Sonnenalpe Nassfeld or to the border crossing (Austria/Italy).
Public transport:
The most sustainable travel option is by train (coming from Villach) to Hermagor. From Hermagor, you can then reach the town of Tröpolach by bus.
Alternatively, there is the possibility to arrive by bus from the direction of Kötschach-Mauthen or Villach to Hermagor or Tröpolach.
From Tröpolach, there are now two options – either you take the Alm shuttle (phone registration required) to continue to the state border,
or you take the Millennium Express from Tröpolach to the Kofelcenter (mountain station) and then use the chairlift of the Madritschenbahn for the descent, to reach the starting point of the Geotrail at the Nassfeld Pass state border after a 10-minute walk.
Details at - Nassfeld mobility information and Carinthian Lines route planner