In our family we have something we like to call Forced Family Fun where we make our kids do things that we think they'll enjoy, even if they believe the activity will be dreadful. Along those lines, I recently completed a challenge cache, some of it with my girls. It would be a lie to claim that the experience inspired me to create this puzzle. No, it is the other way around.
The cache is not at the posted coordinates and is a two-part puzzle. The first part is finding the cache. The second part is a field puzzle to determine the combination on the lock required to access the log.