Bike & Hike
The old road following the road 53 from Sletterust to Øvre Årdal is a truely scenic hike or bike ride. You can do this trip as a selfguided trip at your own risk and with your own equipment, or you can contact the activity provider Bulder & Brak Adventures, and they can organize everything on your behalf.
Conditions on the Tunnel road:
Parts of the road are narrow and unsafe with a rough and uneven surface. You must therefore go slower than on a modern cycle path, and the trip is not suitable for inexperienced cyclists. The most demanding sections can be found just before and inside the tunnel about 5.5 km into the cycle route and from there it can be challenging from the viewpoint at 1000m and down to FV53 (long descent and sharp bends).
Hold to the left side of the road going from Sletterust towards the viewpoint, and get off the bike in those parts of the road you are not comfortable cycling.
The road is prone to rock falls, especially during heavy rainfall, and it is not cleared/maintained by anyone. You cycle here at your own risk.