Just leave your car parked
The regional buses of Montafonerbahn operate throughout Montafon. The main lines run hourly from Schruns station.
From Schruns station, take bus line 650 to Partenen. The stop is: "Bergbahnen". From the bus stop, it is a five-minute walk to the valley station of the Vermuntbahn cable car. From there, continue with the Vermuntbahn and the tunnel bus to reach Silvretta-Bielerhöhe with Lake Silvretta.
For the return journey
Take bus line 650 from Partenen back to Schruns station.
mbs bus timetables
Arrival by train
The Montafonerbahn runs hourly from Bludenz station (sometimes every half hour). There are direct connections from Lindau (D) and Bregenz as well.
mbs train timetables