You might find that your coordinates are different from what my device registered and we might differ a few feet, but honest to goodness... we are under trees! It's on that big lava ridge! Before I adopted it I found the spot to park, saw the rock, walked to it. I left my GPSr in my truck. Don't make it too hard.
Here is what the original owners had to say about it: Ok, gang, there really is a hole in the wall. There is roadside parking due to an almost wide spot on the east-bound side of the road, and then a short stroll. Sort of like over the river and through the woods, only there's no river. The name is the hint, but I'll tell you that it's on the west side of the outcrop. In other words, you would be able to see the spot from the road if you knew exactly where it was Please be sure the two covering rocks get wedged back EXACTLY the way they were so critters don't rattle them loose and expose the cache. The cache is a large Tylenol bottle wrapped in black tape which blends great with the hiding spot!