The first one is the cemetery outside Arnika. Check the headstones in the graveyard (I'm sure you know what to look for
, and bring along an ordinary dagger. The actual entry appears outside the cemetery.
The second is in the northern wilderness. Keep an eye on the pine trees, and have a short staff handy.
You may find them a little disappointing, since you did the toughest (and best) one first.
Nightowl2