Can I go with the public transport, from Lachtal to Turracherhöhe ?

Can I go with the public transport, from Lachtal to Obertauern ?

Slovenia is not a member of schengen.
Can I cross the border from the ski slope of Kanin, through the Prevala valley, to Sella Nevea?
Or it can be done only by italian and slovenian citizens? I am a hungarian citizen.
If i can pass through the valley, till what time can i do during the day?
Do I ...