You can take the Flåmsbana from Flåm or Myrdal.
If you start from Voss Fjellandsby it is easy to get to Flåm for a day trip with the Flåmsbana. Here you can park the car and take the old railroad up to Myrdal and back to Flåm.
You can also drive down to Voss and take the train to Myrdal and then the Flamsbana to Flåm.
For more information.
www.flaamsbana.no
Photo: VisitFlåm. Photographer. Rolf M Sørensen