The cache is not listed at the published coordinates but is hidden around Castle Hill
We know that not everyone enjoys completing Adventure Labs. We know that not everyone has the technology required to complete Adventure Labs.
Therefore, you can gain information about this cache's location in two ways.
- Complete the adventure lab published nearby - upon completion, you will receive details of the hidden container. Link: Castle Hill Ad Lab Bonus
- Complete this simple Puzzle - upon completion, you will have all the information you need to locate the cache.