View from the cache:

The global map above shows latitude and longitude, in 30 degree
increments. Find the grid lines intersecting near the east coast of
Australia. From that point go N77° 36.828 and E89° 20.166 to find
the cache coordinates.
By the way, the Navidogz are Misty and Minnie
Good luck and have fun.
You can check your answers for this puzzle on
Geochecker.com.