I'm planning a trip to the Austrian Alps, probably Gesaeuse National Park, or maybe Kalkalpen, leaving from Vienna. Does anyone have any tips on how to get there (the mountains) most easily using public transport?
I've been looking mostly at the OBB train site, which has an English version, but I'm sure I'll need buses at some point, too, in order to get into the mountains and to the "rifugios".
Despite being in English, the OBB site offers tickets with erratic prices- I've found it often initially offers prices about twice as high as what's available, and by looking for earlier trains I find something that takes the same amount of time for half the price. Sometimes the cheaper train is literally only a few minutes before, but you don't see it in the "default" screen.
Also, is it important to get train tickets ahead of time? (i.e., do prices rise later on?)
Any other public-transport-across-Austria-to-the-mountains tips?