We are renting a car in Oslo for our trip to the fjords in July. After getting advice on this forum for some interesting detours from E16 route, we are putting together an itinerary, and have a few finalizing questions. We are staying at a farmhouse in Vik. So, on our way there we are planning to do the Flam railway then, because it looks quite stunning, I was thinking we might do the Zig Zag road to Stalheim on our way to Vik. Can anyone tell me how long this road is, or any details we might need to know so we can plan to leave enough time in our schedule?