No special access issues
Park on the bank outside the emergency lane along E134 southbound from Røyken towards Drøbak. Cross the wild fence via the stone wall by the culvert (not suited for kids). Walk up the forrest road until you get a sign on your left hand side (bindsided) that shows the path to Bygdeborg.
Alternatively you park in Bjerkelundsveien and follow the marked path to Bygdeborg (2,7 km).
When you reach the ruin of the bygdeborg, the wall is locatde approx 50m onward to the right on the est side of the highest point.