After finding the second cache, the route to this one is a simple case of continuing along the road until you get to GZ. The cache is just beyond a small field containing a dog obstacle course (hence the cache name). Perhaps when you're passing you may see the owner's dog having a workout there.
Again, this one may be possible as a cache'n'dash, and you may be able to find a spot to park nearby, but please don't block any access.
Cache is a small plastic click lock container, in a camo bag. Room for some small swaps.
Next: Logie Loop #4: Woodland treasure trove.