Schröcken | Lake to lake

From Germany:
Lindau motorway, Pfänder Tunnel, Dornbirn Nord motorway exit - Bregenzerwald - Egg - Au - Schröcken

Kempten motorway - Immenstadt - Oberstaufen - Springen-Aach border crossing - Lingenau - Egg - Au (toll-free) -

SchröckenGarmisch-Partenkirchen or Füssen - Reutte (Tyrol) - Lechtal - Warth - Schröcken (toll-free)

From (via) Switzerland: St.
Gallen motorway - St. Margrethen/Au - Lustenau - Dornbirn - Bregenzerwald - Egg - Au - Schröcken.

From Austria:
Inntal motorway - Innsbruck - St. Anton - Arlberg Pass - Lech - Warth (if the Arlberg Tunnel is closed in winter, take the Dornbirn route) - Schröcken