Take the A92 towards Deggendorf then the B11 to Bodenmais or Zwiesel to the Großer Arber.
Take the A6 to Amberg and carry on to Schwandorf taking the B85 to Cham, Bad Kötzting, Lam to the Großer Arber.
Take the Prague-Pilsen motorway to Klattau and carry on through Železna Ruda to Bayerisch Eisenstein to the Großer Arber.
Take the A3 to Passau and then continue on the A3 to Deggendorf. From here, take the B11 to Bodenmais or Zwiesel to the Großer Arber.