After 80 km from GBG (after the beautiful bridge) turn (Right and) LEFT towards Lysekil.
After about 10km there is a roundabaout with a supermarket named Rotan/rotviksbro.
After another 10 km you reach Bokenäs skola and a sign that says ERIKSBERG. Turn left.
Alternate scenic route
At ROTAN roundabout, turn left.
Look for yellow sign BÅRÖD, if you miss that, take the road to the right before the bridge... ah, dont do it, you will get lost...