- On the freeway A10 take the exit "Villach Ossiachersee".
- At the exit keep right
- At the traffic circle take the third exit (Millstätter - Bundesstraße)
- Follow the road to "Treffen" and drive through the village
- Then turn right into the "Gerlitzenstraßen".
- Drive on the road for about 10km and follow the signs "Solarzentrum" (toll road).
- When you see the ski lifts on the right side, turn right
- At the hotels turn sharp left and follow the road to the observatory