Toll road to Prestholtseter
Drive towards Oslo from the Geilo centrum. After about 1km take to the left of the main road 7 towards Havsdalen. You will now drive under the railway. Follow this road up (road is called Nye Havsdalsveien). Take to the right by the sign to Prestholtstien/Halllingskarvet National park.
This is a private road on the mountains and it takes a lot of effort to keep it driveable. This is the reason why there is a fee for using the road.
Obs! This road is only driveable, when it is snow free. Most likely from the start of July to end of September. All depending on the weather at the mountains. No winter driving.