No special access issues
From the center of Drammen, follow signs towards E18 and Oslo, then take E134 south towards Drøbak. At the roundabout at Lahell, where there are signs towards Klokkarstua and Hyggen to the right, continue straight ahead for 1.8 km. At the next roundabout, turn right towards Drøbak and Røyken. You can catch a glimpse of the cliff briefly at the top of the hill in a gentle left turn. Take the first exit to the right marked Røyken/Hyggen, then turn left towards Hyggen/Auvi/Avinor in the roundabout. Turn right onto Luftveien towards Avinor.
Parking is available along the road on the right side before the toll gate. Proceed further. Take a left at the Y-intersection and follow the fence to the left. Follow the path along the fence on the left side, going up a steep hill with a barrier at the bottom, which slopes upwards to the right for the parking lot. At the top of this, take a left onto the path. Follow this along and eventually downwards along the cliff.
From Oslo, take E18 towards Drammen and take the exit towards Heggedal and Asker sentrum. Follow fv. 167 towards Heggedal, Røyken, and eventually E134 towards Drammen. Approximately two km after the roundabout where you encounter E134, turn right towards Røyken and Hyggen, then left towards Hyggen/Auvi/Avinor in the roundabout. Turn right onto Luftveien towards Avinor.