Approach notes

You best get there by autobahn. Drive the A6 (and A62 respectively) direction Landstuhl and leave at intersection Landstuhl direction Pirmasens/Zweibrücken (A62). Exit the A62 at junction "Landstuhl, Hauptstuhl". (You only get to this junction driving in direction Pirmasens and it's very close to the intersection!). If you miss this exit, you'll see the crag to the left of the motorway and you'll realize that it must have been much larger before the motorway was built.

After crossing the autobahn, park on the left of the road on the gravel. Follow the path into the forest over a cattle grid. The path branches after no more than 100m and you must therefore decide: 

Fladenstein - then use the once-I-was-a-stair made of small sandstones. Follow the path over a meadow and some bushes to the crag's top. 

Krämerstein - follow the turn right, hop over a small stream, walk left following the trail, going upwards when there is a fork. After 15 minutes you should arrive at Krämerstein.