No special access issues
1) Don't be loud nor leave anything behind.
2) Drive up to Ginzling from Mayerhofen, then park right before the bridge (with blue railings) to the left or after the bridge by the nature house.
3) Walk up the road that goes up between the Floitenbach (little creek) and the nature house. In the first big right turn head straight into the woods and you will be at the crag. Ginzling first can be reached easier by heading down to the left a bit earlier into the riverbed. The paths are drawn in on the map.